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We examined self-reported emotional experiences in 3 short-term intensive longitudinal studies of Mechanical Turk workers in the United States (Ns = 55; 107; 229). We used an emotion family approach based on lexical studies of emotion knowledge to investigate the within-person structure and correlates of everyday emotional experiences, and took steps towards developing the Facets of Emotional Experiences in Everyday Life Scale. We conducted factor analyses on the within-person level using 6 emotion families to guide our approach (Nobservations = 1,375; 6,582; 11,029). We observed that responses to a range of emotion terms “in the past hour” could be summarized into 26 factors, 19 of which showed evidence of replication. Some factors included descriptors corresponding to discrete emotions (e.g., content, serene, calm, peaceful comprised a Contentment factor), and some included clusters of related emotions (e.g., compassionate, adoring, caring, loving comprised a Love factor). Facets of emotional experiences were associated with momentary self-views and situational characteristics. For example, Authentic Pride and Gratitude experiences were both characterized by greater momentary self-esteem, but Authentic Pride was associated with being in situations involving productivity, thinking deeply, and being with weak ties, while Gratitude was linked to acting sociably and being around close others. The assessment of facets of emotional experience expands our view of emotional experience and shows promise for better understanding personality dynamics in everyday life. Research is needed to examine the generalizability of results to other samples and to further assess measurement properties in studies of daily life.

OBJECTIVES: This study aimed to determine whether responses to Patient-Reported Outcomes Measurement Information System Short Form v2.0 - Physical Function 8c (PROMIS PF8c) items differed when the use of a 7-day recall period was compared with no specified recall period.METHODS: Using a within-subject design, we surveyed 1810 individuals from the US general population, administering PROMIS PF8c at survey beginning and end. The order of measure presentation was randomly assigned. We calculated recall difference scores (RDSs) as no recall score minus 7-day recall score using both item response theory-based T scores and raw summed scores. We examined the distribution and created Bland-Altman plots for both RDS Tscore and RDS Raw. We also calculated correlations between no recall versus 7-day recall T score and raw scores. Finally, we determined whether differences in no recall versus 7-day recall scores were associated with patient-reported PF. RESULTS: RDS Tscore and RDS Raw had means (root mean square differences) of 0.00 (5.43) and -0.04 (3.79), respectively. The vast majority (%) of RDS Tscore and RDS Raw values fell between the Bland-Altman limits of agreement (-10.65 to 10.66 and -7.46 to 7.38, respectively). Pearson's correlations between no recall and 7-day recall for T scores and raw scores were 0.88 and 0.87, respectively. Effect sizes for mean RDS Tscore and RDS Raw compared across level of Eastern Oncology Cooperative Group performance status, patient global impression of PF severity, and single PF items were near 0. CONCLUSIONS: We did not find any significant recall period effect on PF8c responses. Therefore, we recommend the use of the PROMIS physical function standard, with no specified recall time period.

Emotion differentiation refers to the tendency to label emotions in a granular way. While differentiation is an important individual difference in the context of psychological well-being, it is unknown how it fluctuates within individuals. Such a within-person measure is important, since it would allow the study of how changes in differentiation predict subsequent levels of other variables of interest. Here, we present a framework to study emotion differentiation at the within-person level by introducing a momentary emotion differentiation index. This index is directly derived from the classical emotion differentiation index, the intraclass correlation. We first give a theoretical derivation of this index. Next, using data from two experience sampling studies, we show how this new momentary index is related to other momentary indicators of well-being, and take the first steps in building its nomological network. A better understanding of within-person fluctuations in emotion differentiation will allow us to identify the causes and consequences of these fluctuations, and search for ways to teach individuals to increase their level of emotion differentiation. ispartof: Assessment vol:29 issue:4 pages:700-716 ispartof: location:United States status: published

Objectives: Whereas previous work has almost exclusively focused on negative emotional reactivity to daily stressors, we focus on positive emotional reactivity - changes in positive emotions in response to a stressor. We examine daily forecasting and anticipatory coping for next-day home-related stressors within the temporal space before stressors to examine positive emotional reactivity in younger and older adults.Methods: We recruited 107 younger (M age = 19.44, range 18-36) and 116 older (M age = 64.71, range 60-90) participants who completed a nine day daily online diary for 1,627 total days. Participants reported demographics on Day 1 and then stressor forecasts, anticipatory coping, stressor exposure, and positive affect on Days 2-9.Results: Older adults had more positive affect when using outcome fantasy for next-day home stressors compared to younger adults, but forecasting a home stressor was associated with a stronger increase in positive affect for younger adults compared to older adults.Conclusion: These results reveal complex and dynamic links that exist in age differences in stressor forecasting, anticipatory coping, and their association with positive affect. The context of daily stressors is important to understand the nuances of matching stressor forecasts and anticipatory coping for positive emotional well-being in younger and older adults.

Objectives Prior studies that examined the role of electronic nicotine delivery systems (ENDS) use in smoking cessation have shown divergent conclusions. This study examined the time-course of ENDS-associated smoking abstinent behaviors among continuing cigarette smokers who were willing but unable to quit smoking. Methods Data were drawn from the four waves of the Population Assessment of Tobacco and Health Study. Of the 1684 smokers who tried to quit smoking completely at Wave 1, a total of 1094 who were continuing smokers until Wave 4 and were not lost to follow-ups comprised the sample. Using generalized linear mixed modeling, we fitted weighted negative binomial regression models to examine within-person associations of ENDS use with quit attempts and number of days abstinent from smoking. Results Quit attempt frequency and smoking abstinent days were highest at Wave 1, dropped at Wave 2, and then either increased a little or remained stagnant in later waves. ENDS use to quit smoking was associated with more frequent quit attempts (aIRR = 1.67, 95% CI = 1.42–1.95) and more abstinent days (aIRR = 3.28, 95% CI = 2.43–4.44), and the magnitude of such associations became stronger over time. ENDS use was associated with becoming a nondaily smoker among baseline daily smokers. Conclusions ENDS use among continuing smokers may help increase the number of quit attempts and smoking abstinent days. Given that the study sample is continuing smokers who failed in complete smoking cessation, future research would be desirable that evaluates whether such abstinent behaviors sustain and manifest harm reduction with improved health outcomes. Implications Smokers increasingly adopt electronic nicotine delivery systems (ENDS) to quit smoking. However, the association of ENDS use with smoking cessation efforts among continuing cigarette smokers who were willing but unable to quit smoking is largely unknown. This study found that quit attempts and smoking abstinent days increased with ENDS use to quit smoking by following up with population-representative continuing smokers. Additionally, this study assessed whether cigarette smokers’ abstinent behaviors vary with their use of ENDS by estimating within-person associations with frequent assessments of both exposures and outcomes in a long-term perspective.

Objective Alcohol and cannabis use as well as their simultaneous use are common among U.S. college students. Reasons for use are proximal predictors of consumption and consequences. Little research has examined possible adverse effects of endorsing multiple motives on a given use day. We examined the effects of the number of motives on consumption and negative consequences for alcohol-only, cannabis-only, and simultaneous-use days. Method College students (N = 341; 53% women; mean age = 19.79 years) who reported past-month simultaneous alcohol and cannabis use completed 54 days of data collection. We used generalized linear mixed-effects models to examine the effects of endorsing multiple motives on consumption and consequences. Results Across models, endorsing more motives than typical on a given use day (within person) and more motives in general (between person) was related to greater alcohol and cannabis consumption. Endorsing more alcohol-only motives and cannabis-only motives than typical resulted in greater odds of experiencing a negative consequence when accounting for consumption. This within-person effect was not statistically significant for simultaneous-use motives/consequences. Endorsing a greater number of motives across the study (i.e., between person) was not significantly related to consequences beyond consumption. Conclusions Research has documented the robust effects of specific motives on substance use outcomes. Our novel findings extend this work by demonstrating the risks associated with endorsing multiple motives on a given use day. In addition to motive type, we recommend that the number of motives endorsed on a given day be considered as a potential risk factor to be targeted to reduce harms associated with substance use.

Physical reasoning appears central to understanding how the world works, suggesting adaptive function across the animal kingdom. However, conclusive evidence for inferential reasoning about physical objects is limited to primates. We systematically tested a central feature—understanding of solidity—in domestic dogs, by adapting a validated procedure (the shelf task) previously used to test children and non-human primates. Dogs watched a treat dropped into an apparatus with a shelf either present (treat landing on the shelf) or absent (treat landing on the bottom surface) and chose where to search for it (above or below the shelf). Across four studies (N=64), we manipulated visual access to the treat trajectory and apparatus interior. Dogs correctly inferred the location of treats using physical cues when the shelf was present (Study 1), and learned rapidly when visual cues of continuity were limited (Study 2), and when the shelf was absent (Study 3). Dogs were at chance when the apparatus was fully occluded, and the presence and absence of the shelf varied across trials within subjects, and showed no evidence of learning (Study 4). The findings of these four studies suggest that dogs may be able to make some inferences using solidity and continuity and do not exhibit proximity or gravity biases. However, dogs did not always search correctly from Trial 1, and failed to search correctly when the rewarded location varied within-subjects, suggesting a role for learning, and possible limits to their ability to make inferences about physical objects.

This study examined the effects of spanking on externalizing on a within-subject level, while excluding causally irrelevant between-subject variance. Results from two longitudinal studies which used participants from the Child Development Project (n = 585) were reanalyzed with a random-intercept cross-lagged panel model using yearly measurements over ages 6-8. After removing between-subject variance, there were no significant effects of general spanking on externalizing (β = .06, .07). However, when done without objects and at a rate of about once per month or less, spanking showed beneficial effects (β = -.17, -.21). Results suggest that previous findings may be due to a failure to separate between-subject and within-subject variance. Additionally, results illustrate the need to examine limited spanking separately from more general forms of physical punishment.

Research suggests that inter-individual differences in the degree of state attachment variability are related to differences in trait attachment and psychological problems between children. In this study, we tested whether such associations are also relevant at a within-person level, and if so, whether intra-individual fluctuations in the degree of variability were predictive of or predicted by intra-individual fluctuations in trait attachment and psychological problems. Children (N = 152, Mage = 10.41 years, SDage = 0.60 at time 1) were tested three times over a period of one year. At each timepoint, children reported on their expectations of maternal support in different distressing situations. Additionally, we administered measures of trait attachment to children and psychological problems to children and their mothers. We used Random-Intercept Cross-Lagged Panel Models to distinguish between-person from within-person associations between these constructs over time. The results revealed that the degree of state attachment variability was mainly relevant to understand differences between children in trait attachment and psychological problems: children who overall showed more state attachment variability were overall less securely attached at a trait-level and reported more psychological problems. Although evidence for within-person associations was less robust, there was some indication that the degree of state attachment variability might be related to the development of trust and psychological problems at a within-person level.

Given a choice, pigeons prefer an initial-link stimulus that is followed by reliable signals that food will be delivered (S+) or not (S-) after a delay, over an alternative initial-link stimulus that is followed by unreliable signals of food, even when the former yields a lower overall probability of food. This suboptimal preference has been attributed to the combination of a biased attraction to the S+ and ignoring the S-. We evaluated the inhibitory properties of the S- in three experiments to investigate its role in suboptimal choice. In Experiment 1, pigeons were trained in an autoshaping procedure with the four terminal link stimuli of the suboptimal choice task; S+ was continuously reinforced, S3 and S4 were each partially reinforced on a 50% schedule, and S- was never reinforced. Summation tests showed that S- acquired inhibitory properties during training. Experiment 2 replicated the summation tests after training on the full suboptimal choice procedure and found that S- inhibition was not attributable to external inhibition. In Experiment 3, pigeons were trained on the suboptimal choice procedure and the development of inhibition was assessed throughout training. An analysis of individual differences across birds revealed that the response rates to S- were negatively correlated with the strength of suboptimal preference, both within subject as each bird acquired suboptimal preference, and across subjects once all birds had reached asymptotic levels of suboptimal preference. Thus, rather than ignoring the S-, we found evidence that birds attended to S- as an inhibitory stimulus. Future models explaining performance in the suboptimal choice task should consider inhibition to the S- as a factor in suboptimal choice. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Depressive symptoms predict within-person change in physical symptoms of anxiety and social anxiety symptoms; however, potential mediators of these within-person associations remain understudied. The current study examined whether overall stress, interpersonal stress, and achievement stress mediate the associations between depressive symptoms and physical, social, and separation anxiety symptoms for girls and boys in a sample of 680 community youth aged 8–18 (M = 11.8, SD = 2.4; 55% female) using a random intercept cross-lagged panel model (RI-CLPM). Participants completed measures of anxiety symptoms, depression symptoms, and stress (Adolescent Life Events Questionnaire) every 3 months for 3 years (13 total assessments). Overall and interpersonal stress partly mediated the longitudinal, within-person associations between depression symptoms and physical symptoms of anxiety and between depression symptoms and social anxiety symptoms. Stress did not mediate the longitudinal associations between depression and separation anxiety symptoms. Multigroup models indicated that total stress mediated the associations between depression and physical symptoms of anxiety, and between depression and social anxiety for girls but not for boys. Results support the role of stress as a mediator of the association between depression and anxiety symptoms and suggest that, as youth experience depression-related impairment, they may generate additional stressors, which increase their symptoms of physical and social anxiety.

Adolescents who anticipate a shorter lifespan are more likely to engage in reckless behavior, but few studies consider whether an adolescent’s estimated life expectancy (ELE) demonstrates change across development. This study examined whether ELE changes over time, and if these changes are associated with within-person changes in delinquency in 1147 males who had been arrested for the first time. An accelerated cohort design provided data for youth aged 14–21. Estimated life expectancy showed linear change, suggesting that adolescents grow more optimistic about their life expectancy as they age. Within person, increases in ELE were associated with decreased offending, a pattern consistent across development. These findings support the utility of ELE as a target for intervention in reducing adolescent crime.

Women are among the fastest growing populations of those with substance use disorders in the United States. Women face different social barriers than men in their access to treatment and recovery from these disorders. Differentially experienced barriers include greater child caregiving responsibilities, social sigma regarding motherhood and substance use, romantic partners who also use substances, experiences of violence and trauma, and, relatedly, symptoms of post-traumatic stress disorder. These barriers have been studied primarily by employing between-group approaches (e.g., comparing men and women) or between-persons approaches (e.g., cross-sectionally assessing the relationship between person-level PTSD symptoms and relapse). However, there are limited studies on women’s gender-specific experiences in recovery with the aim of elucidating within-person effects. Employing within-person designs, such as daily diary or ecological momentary assessments, has many advantages. These advantages include reducing retrospective bias, assessing temporality of processes that occur on a short time scale, and analyzing processes that may occur when individuals deviate from their personally normative experiences. Studying women’s experiences in recovery “as they are lived” will enable the development of interventions that are fine-tuned to the specific needs of each woman, and ultimately may help to reduce the suffering of women with substance use disorders.

Many foraging experiments have found that subjects are suboptimal in foraging tasks, waiting out delays longer than they should given the reward structure of the environment. Additionally, theories of decision-making suggest that actions arise from interactions between multiple decision-making systems and that these systems should depend on the availability of information about the future. To explore suboptimal behavior on foraging tasks and how varying the amount of future information changed behavior, we ran rats on two matching neuroeconomic foraging tasks, Known Delay (KD) and Randomized Delay (RD), with the only difference between them being the certainty of the cost of future opportunities. Rats' decision-making strategies differed significantly based on the amount of future certainty. Rats on both tasks still showed suboptimality in decision-making through a sensitivity to sunk costs; however, rats on KD showed significantly less sensitivity to sunk costs than rats on RD. Additionally, on neither task did the rats account for travel and postreward lingering times as heavily as prereward foraging times providing evidence problematic for the Marginal Value Theorem model of foraging behavior. This suggests that while future certainty reduced decision-making errors, more complex decision-making processes unaffected by future certainty were involved and likely produced these decision-making errors within subjects on these foraging tasks. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Many emerging adults report experiencing mental health challenges (e.g., depressive symptoms and perceived stress) during the transition to university. These mental health challenges often coincide with increased engagement in nonsuicidal self-injury (NSSI; e.g., self-cutting or burning without lethal intent), but longitudinal research exploring the nature of the associations among depressive symptoms, perceived stress, and NSSI are lacking. In the present study, it was examined whether depressive symptoms and perceived stress predicted increased risk for NSSI over time (or the reverse), and whether these effects were mediated or moderated by self-compassion. The sample consisted of 1,125 university students ( Mage = 17.96 years, 74% female), who completed an online survey three times in first year university. A random intercept cross-lagged panel model revealed that higher depressive symptoms, perceived stress, NSSI, and lower self-compassion often co-occurred, but only NSSI predicted increased perceived stress over time. Theoretical and practical implications are discussed.

Magdy Ragab,1 Omneya El zagh,2 Carmen Farid1 1Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Alexandria University, Alexandria, Egypt; 2Department of Dermatology, Venereology and Andrology, Ministry of Health Hospitals, Alexandria, EgyptCorrespondence: Carmen FaridDepartment of Dermatology, Venereology and Andrology, Faculty of Medicine, Alexandria University, Champollion Street, Al Mesallah Sharq, Al Attarin, Alexandria Governorate, EgyptTel + 00201222966670Fax + 002035925427Email KARMIN.FRED@alexmed.edu.egBackground: Repigmentation remains the primary target in vitiligo treatment. Melanocyte transfer procedures are often required for repigmenting stable, resistant vitiligo lesions necessitating procedural optimization and comparative evaluation. In the current study, we aimed to assess the additive value of weekly transverse needling sessions after mini-punch grafting for repigmenting stable non-segmental vitiligo lesions versus either procedure alone.Methods: Eighty lesions, included in 20 stable non-segmental vitiligo patients, were randomly allocated to each of the three treatment groups (line-1, mini-punch grafting; line-2, needling; and line-3, combined grafting and needling) and to a fourth control group receiving non-procedural treatment (line-4). Oral mini-pulse steroids and narrow-band ultraviolet-B sessions were administered to all patients for 3 months before and 6 months after the interventions. The extent of repigmentation was assessed using planimetry. Secondary outcomes were the time to first repigmentation response, cosmetic matching, and patient satisfaction. Blinding and allocation concealment were not feasible owing to the intervention nature and within subject design.Results: Mini-punch grafting followed by weekly needling for 6 months achieved the fastest response and highest extent of repigmentation. Mini-punch grafts and transverse needling alone provided better results than the control group. No steroid-associated side effects were reported.Conclusion: Weekly needling sessions after mini-punch grafting hastened and improved the repigmentation extent of stable, resistant, non-segmental vitiligo lesions and should be considered during treatment planning.Keywords: vitiligo surgery, oral mini-pulse steroid, planimetry, narrow-band UVB, stability

Aim: The aim of this within-subject study was to evaluate and compare clinical denture base deformation with two types of denture base reinforcement for telescopic implant retained overdentures. Materials and methods: Six completely edentulous participants received two implants in the canine region of the mandible and the implants were connected to the overdentures with resilient telescopic attachments. Each patient received 2 types of denture reinforcement for the mandibular overdentures; 1) metal reinforced overdentures, 2) PEEK reinforced overdentures. Four strain-gauges were adhered to the lingual polished surface of each denture abutment top (C1 and C3), and 5 mm below abutment top (C2 and C4). Strain registrations were performed during maximum voluntary clenching. Results: The measured strains and implant positions C1 and C3 were tensile in nature and the measured strains at implant positions C2 and C4 were compressive in nature. The highest microstrain was noted at C3, followed by C1, then C2, and the lowest strain was noted was with C4 for both groups. There was no significant difference in recorded microstrains between C1 and C3 or between C2 and C4. For all strain gauge positions, PEEK reinforced overdentures recorded significantly higher microstrains than metal-reinforced overdentures. Conclusion: Within the limitation of this short term cross over trial, cobalt-chromium metal reinforcement for mandibular implant assisted overdentures is recommended than PEEK reinforcement as it reduced denture base strains and deformation during maximum voluntary clenching.

Aim: This within-subject study report to investigate masticatory efficiency and maximum bite force of Locator and telescopic crown attachments used to retain maxillary implant overdentures. Materials and methods: Six edentulous patients (3 males and 3 females) received 4 implants in the anterior maxillary region between the maxillary sinuses using a standardized 2 stage surgical approach. Six months after osseointegration, the implants were loaded either by Locator or telescopic maxillary overdentures in a cross-over study design. Masticatory efficiency was performed using the 2-colored gum mixing ability test. The gum was chewed for 5, 10, 20, 30, and 50 cycles, and the images of the chewed gum were analyzed using a Photoshop program to calculate the unmixed fraction (UF). Also, maximum bite force was evaluated using a bite-force transducer. Chewing efficiency and maximum bite forces were evaluated 3 months after wearing each overdenture. Results: The success rate was 100% in both groups. There was a trend for a decrease in UF (ie improved masticatory efficiency) with the increase in the number of masticatory cycles. Telescopic maxillary overdentures showed significantly lower UF (ie higher masticatory efficiency) and higher maximum bite force than Locator maxillary overdentures Conclusion: Telescopic attachments are recommended for maxillary implant overdentures as it had improved masticatory efficiency and maximum bite force than Locator attachments

Exposure adjusted incidence rate (EAIR) and exposure adjusted event rate (EAER) are two commonly used measures for adverse event risk in clinical trials. However, in clinical trials with treatment crossover, classical EAIR and EAER should be adapted before being used due to the presence of within subject correlation. In this paper, we review the definition and motivation of EAIR and EAER, discuss how we can use mixed-effect models and generalized estimating equations to adapt EAIR and EAER to the treatment crossover case, and evaluate the proposed methods on synthetic trial data. We aim to combine both theory and practicality – while presenting sufficient theoretical motivation and justification, we also provide the SAS code for the proposed methods and discuss the practical issues one might encounter when applying them.

While cognitive control enables the selection of goal-relevant responses, metacontrol enables the selection of context-appropriate control operations. In task switching, metacontrol modulates task-switching efficiency by retrieving the associations between a contextual cue and a particular cognitive control demand. While the automatic retrieval of cognitive control is appealing due to its time and energy efficiency, the effects of different contextual cues have been shown in separate studies and appear to have different characteristics. Here, we devised a single task-switching paradigm to test whether we can observe both list-wide and item-specific metacontrol within subjects. In two experiments, we demonstrated reduced switch costs in lists associated with a high probability of switching as compared with lists with a low probability of switching (i.e., a list-wide switch probability [LWSP] effect). Similarly, we observed an analogous item-specific switch probability (ISSP) effect such that items associated with a high probability of switching incurred smaller switch costs as compared with items associated with a low probability of switching. We also confirmed that both list-wide and item-specific switch probability effects were not dependent on lower-level stimulus-response associations. However, the LWSP and the ISSP effects were uncorrelated, suggesting a lack of dependence. Together, these findings suggest that there are two distinct modes of metacontrol that are deployed in a context-sensitive manner in order to adapt to specific cognitive demands.

Glucocorticoids exert profound effects on the brain and behavior, but cortisol concentrations are rarely linked to subjectively reported emotional states in humans. This study examined whether the link between cortisol and subjective anxiety varied by childhood maltreatment history. To do this, 97 individuals (60.8% female) participated in a standardized stress task in the laboratory (Trier Social Stress Test, TSST) while providing serial ratings of their feelings of anxiety as well as cortisol samples in blood. These measurements were collected nine times across the laboratory visit, from immediately before the TSST to 65 minutes after stress initiation. We estimated the within-person association between cortisol concentrations and momentary feelings of anxiety for individuals with and without exposure to childhood maltreatment, measured via self-report on the Childhood Trauma Questionnaire (CTQ). Individuals exposed to maltreatment during childhood reported the greatest feelings of anxiety when cortisol concentrations were lowest. This pattern was exaggerated among female participants, those with posttraumatic stress disorder (PTSD), and those exposed to emotional neglect relative to other forms of maltreatment. Early life adversity, such as parental maltreatment, may alter the role of cortisol in affective experiences. This observation may provide preliminary, translational evidence of a novel pathway through which stress may lead to and maintain internalizing symptoms in humans. More studies accounting for the moderating role of childhood maltreatment in biobehavioral pathways are needed.

Does uncertainty about an outcome influence decisions? The sure-thing principle (Savage, 1954) posits that it should not, but Tversky and Shafir (1992) found that people regularly violate it in hypothetical gambling and vacation decisions, a phenomenon they termed “disjunction effect”. Very close replications and extensions of Tversky and Shafir (1992) were conducted in this paper (N = 890, MTurk). The target article demonstrated the effect using two paradigms in a between-subject design: here, an extension also testing a within-subject design, with design being randomly assigned was added. These results were consistent with the original findings for the “paying to know“ problem (original: Cramer’s V = 0.22, 95% (CI) [0.14, 0.32]; replication: Cramer’s V = 0.30, 95% CI [0.24, 0.37]), yet not for the “choice under risk” problem (original: Cramer’s V = 0.26, 95% CI [0.14, 0.39]; replication: Cramer’s V = 0.11, 95% CI [−0.07, 0.20]). The within-subject extension showed very similar results. Implications for the disjunction effect and judgment and decision-making theory are discussed, and a call for improvements on the statistical understanding of comparisons of between-subject and within-subject designs is introduced. All materials, data, and code are available on https://osf.io/gu58m/ .

Extreme work environments are inherently stressful and involve challenging working and living conditions. In contexts ranging from space exploration to disaster response, people must sustain performance under pressure, and function with limited resources. In this paper we develop the concept of endurance for extreme work environments, which we define as the capacity to sustain performance at high levels for safe and effective operations over extended durations (e.g., a mission, operation, deployment, or expedition). We integrate diverse streams of literature (e.g., work stress, recovery, and sleep) to describe endurance in terms of short- and long-term energy management processes as individuals interact with their work-life system (i.e. work, non-work, and sleep environment). We conclude with theoretical and practical implications for a better understanding of endurance, such as considering multiple time perspectives, and the role that researchers, practitioners, and organizations can play in optimizing endurance in the field.

Research on the effects of within-person personality variability has mainly focused on the consequences for subjective well-being. Drawing on a resource-based approach, we extend this field to the work domain, expecting that since deviating from one’s average trait level is resource intensive, it should relate negatively to behaviors that require the investment of additional resources, such as organizational citizenship behavior (OCB), while it should relate positively to behaviors that replenish one’s resources, such as counterproductive work behavior. Using two personality dimensions that are predictive for work-performance (conscientiousness and core self-evaluations), and a new variability index that is not confounded by the mean, we find an effect of personality variability on negative performance outcomes (counterproductive work behavior), while no relation is found with positive forms of extra-role performance (organizational citizenship behavior). These results were replicated across three separate experience sampling studies, confirming that, while within-person personality variability is related to performance, those relationships are relatively weak and they do not hold for every performance facet.

Prior cross-sectional and unidirectional longitudinal research has investigated the associations among academic achievement, depressive symptoms, and suicidal ideation without distinguishing between-person effects from within-person effects. Our study aimed to examine the longitudinal relations among academic achievement, depressive symptoms, and suicidal ideation in a sample of elementary school children at the within-person level using cross-lagged panel models (CLPMs) and random intercept cross-lagged panel models (RI-CLPMs). Also, multiple models replicated these findings by using three measures of academic achievement (i.e., objective academic achievement, subjective academic achievement, and teacher-assigned academic achievement). A sample of 715 Chinese elementary schoolchildren completed self-report measures of subjective academic achievement, depressive symptoms, and suicidal ideation on five occasions, using 6-month intervals. Objective academic achievement data were obtained from school records and teacher-assigned academic achievement data were reported by teachers. The results showed that: (a) In CLPMs, objective academic achievement negatively predicted suicidal ideation. However, RI-CLPMs supported the negative effect of suicidal ideation on objective academic achievement. (b) The CLPMs revealed reciprocal associations between subjective and teacher-assigned academic achievement and depressive symptoms, respectively. However, RI-CLPMs only provided support for the negative effect of depressive symptoms on subjective academic achievement. (c) Both the CLPMs and the RI-CLPMs showed bidirectional relations between depressive symptoms and suicidal ideation. These findings highlight that mental health problems (e.g., depressive symptoms and suicidal ideation) serve as antecedents of academic performance and that it is beneficial to distinguish between between-person and within-person effects in research informing the development of prevention and intervention programs.

The present study examines the extent to which temporal and spatial properties of sound modulate visual motion processing in spatial localization tasks. Participants were asked to locate the place at which a moving visual target unexpectedly vanished. Across different tasks, accompanying sounds were factorially varied within subjects as to their onset and offset times and/or positions relative to visual motion. Sound onset had no effect on the localization error. Sound offset was shown to modulate the perceived visual offset location, both for temporal and spatial disparities. This modulation did not conform to attraction toward the timing or location of the sounds but, demonstrably in the case of temporal disparities, to bimodal enhancement instead. Favorable indications to a contextual effect of audiovisual presentations on interspersed visual-only trials were also found. The short sound-leading offset asynchrony had equivalent benefits to audiovisual offset synchrony, suggestive of the involvement of early-level mechanisms, constrained by a temporal window, at these conditions. Yet, we tentatively hypothesize that the whole of the results and how they compare with previous studies requires the contribution of additional mechanisms, including learning-detection of auditory-visual associations and cross-sensory spread of endogenous attention.

Several philosophers and psychologists have argued that evidence of moral framing effects shows that many of our moral judgments are unreliable. However, all previous empirical work on moral framing effects has used between-subject experimental designs. We argue that between-subject designs alone do not allow us to accurately estimate the extent of moral framing effects or to properly evaluate the case from framing effects against the reliability of our moral judgments. To do better, we report results of our new within-subject study on four types of moral framing effects, and we discuss the implications of our findings for the relia­bility of moral judgments. Overall, our results strengthen the evidence from moral framing effects against the reliability of some of our moral judgments.

ObjectiveTo determine whether deep brain stimulation (DBS) causes swimming impairment, we systematically compared swimming ability between DBS on vs off in 18 patients.MethodsWe conducted a randomized blinded crossover study, comparing swimming ability between DBS on vs off, within participants. Participants swam 3 laps of front crawl and 3 laps of breaststroke. Prespecifed primary outcomes were proportion of lap completed, lap time, and Aquatic Skills Proficiency Assessment (ASPA) score. Prespecified secondary outcomes were a qualitative description of marked changes observed.ResultsEighteen participants with Parkinson disease (n = 13), essential tremor (n = 3), Tourette syndrome (n = 1), or posttraumatic brain injury proximal tremor (n = 1), treated with posterior subthalamic area (n = 15) or globus pallidus interna (n = 3) DBS were assessed. There was no significant effect of DBS on/off status on any outcome measure for front crawl or breaststroke. Three participants showed changes in both qualitative and quantitative assessments. Of these, 1 participant displayed reduction in swimming ability: impairment in all outcomes with DBS on, normalizing with DBS off (the same individual as previously reported). The participant displayed difficulty coordinating limb movement as well as postural control. Two participants showed improvements in lap time and ASPA scores with DBS on.ConclusionOverall DBS did not impair swimming performance, although 1 patient demonstrated a stimulation-induced drowning hazard. There were no anatomic or clinical features unique to the individual with swimming impairment. Patients should be warned about the possibility of DBS-induced drowning hazard and should swim with capable supervision after DBS.Classification of EvidenceThis study provides Class IV evidence that for patients with implanted DBS electrodes, the stimulation on condition, compared with stimulation off, did not significantly impair swimming performance. A formal assessment of unblinding would have been helpful.

Stress exposure increases risk for depressive symptoms. However, there are substantial individual differences in affective responses to stress. High-frequency heart rate variability (HF-HRV), a marker of vagally-mediated parasympathetic activity, has been conceptualized as a psychophysiological index of emotion regulation that may moderate individuals' responses to stress. Using a daily diary design, we tested whether individual differences in resting HF-HRV moderated the association between daily child-related stress and negative affect among a sample of 84 heterosexual couples with preschool-aged children. After controlling for participants' age, gender, socioeconomic status, employment status, and ethnicity, hierarchical linear modeling revealed that resting HF-HRV moderated both the between-person and within-person associations between self-reported child-related stress and daily negative affect. Between-person analyses indicated that the strength of the positive association between mean daily child stress and negative affect across the daily diary period increased with decreasing resting HF-HRV. Similarly, within-person analyses indicated that on days when participants reported more child-related stress than usual, the magnitude of the increase in negative affect on that day was inversely related to resting HF-HRV. Taken together, these findings suggest that lower resting HF-HRV may index vulnerability to stress-related disturbances in negative affect. This increased negative affective response to daily stress may be one pathway through which individuals with lower resting HF-HRV are at increased risk for depressive symptoms over time.

Relational turbulence theory posits that external changes to the relational environment compel romantic partners to navigate transitions by establishing new daily routines as interdependent couples. The COVID-19 pandemic is an unprecedented transition fraught with difficult changes that have the potential to be especially disruptive to romantic partners’ daily routines as couples alter their patterns of interdependence and adapt their everyday lives. To study the pandemic’s effect as a relational transition, college students in romantic relationships ( N = 314) completed measures of partner facilitation and interference, negative emotions, and relational turbulence as they recalled what their relationships were like prior to the pandemic (January, 2020) and then reported on their relationships during the peak of the first wave of the pandemic in the U.S. (April, 2020). On average, negative emotions (i.e., anger, fear, sadness) toward interacting with partners and relational turbulence both increased from before to during the pandemic, and partner interference was positively correlated, whereas facilitation was inversely correlated, with negative emotions during the pandemic. Results of a within-subjects mediation model revealed that changes in relational turbulence were explained, in part, by a decrease in partner interdependence due to the pandemic. A direct effect of the pandemic on increases in relational turbulence was also discovered.

OBJECTIVE The oscillations between binge eating, purging, and dieting in bulimia nervosa (BN) may produce substantial within-subject weight variability. Although weight variability has been predictive of eating- and weight-related variables in community samples, it has not been empirically examined in eating disorders. The current study examined cross-sectional and prospective associations between weight variability and BN pathology. METHOD Four weights were collected over an average of 42.02 days, and weight variability was calculated as the root mean square error around each individual's weight trajectory regression line. Linear regressions were performed to examine the association between weight variability and eating disorder psychopathology, cross-sectionally at baseline and prospectively at 6-month follow-up, adjusting for baseline BMI. RESULTS Weight variability was cross-sectionally associated with eating pathology, but these relationships became non-significant after adjusting for BMI. However, at 6-month follow-up, greater baseline weight variability predicted increases in body dissatisfaction, shape and weight concerns, and global eating pathology, even after adjusting for baseline BMI. DISCUSSION These findings demonstrate, for the first time, that within-subject weight variability predicts greater eating disorder pathology over time in BN. The results add to evidence that weight history variables contribute to BN psychopathology above and beyond well-documented psychological dysfunction in BN.

BACKGROUND A study was made of the prevalence, co-occurrence and association among caries, nutritional habits, and peri-implant disease, with an analysis of the influence of other patient and implant factors upon peri-implant disease. METHODS The included subjects underwent a clinical examination and were asked to complete a questionnaire. Demographic data and potential lifestyle/behavioral variables were collected. Clinical and radiographic assessment allowed calculation of the decayed, missing and filled teeth (DMFT) index and peri-implant diagnosis. Uni- and multivariate multinomial logistic regression analyses were applied to identify predictors of peri-implant disease. RESULTS A total of 169 patients with 311 implants were studied. At patient level, 92.2% of the subjects presented at least one carious lesion, whereas 22.5% and 56.2% were diagnosed with peri-implantitis and mucositis, respectively. Those patients with more than two caries had a higher risk of mucositis (OR = 3.33). Statistically significant associations for peri-implantitis included full mouth periodontal indexes, sugar-rich diets, keratinized mucosa width, number of missing teeth and interproximal untreated caries or fillings adjacent to implants. CONCLUSION High caries risk profiles and mucositis/peri-implantitis tended to accumulate within subjects. A sugar-enriched diet and untreated caries or fillings adjacent to implant sites may be further considered as risk indicators of peri-implantitis.

Objective The circular structure of values has been verified mostly at a between-person level and on measures of general value preferences. In this manuscript, we argue that it is a simplification that neglected significant aspects of the value structures and distinguish four different types of structures: (a) between-person structure of value traits, (b) within-person structure of value traits, (c) between-person structure of value states, and (d) within-person structure of value states. We argue that the within-person structure of value states addresses the circular structure of values most accurately. Method To compare all four structures, we collected three partially dependent samples (N1 = 449, N2 = 293, N3 = 218) of adults (age 17–57, M = 24). At three time points, separated by 5–7 weeks, respondents completed a questionnaire measure (Portrait Values Questionnaire-Revised [PVQ-RR]) of value preferences (value traits) and reported the importance of values in their everyday actions (value states) for 1 week in an experience sampling study. Results The four types of value structures were stable over time. All four were also consistent with Schwartz's value model to some degree, but at the same time, there were some deviations. Conclusions It is important to distinguish four types of value structures and be aware of their different interpretations that we outlined in this paper.

There exist many variants of confidence intervals for Cohen's d_p in within-subject designs. Herein, we review three past proposals (Morris, 2000; Algina & Keselman, 2003, Goulet-Pelletier & Cousineau, 2018) and examine five new ones, four of which are based on the recently discovered distribution of d_p in such design. We examine each method according to their accuracy in coverage rate (desired coverage is 95% in this study), symmetry (i. e., equal rejection rates from the left and from the right), and width of the interval. It is found that the past three proposals are pseudo confidence intervals, being too liberal under some circumstances (fortunately uncommon for the methods of Morris and Algina & Keselman). Additionally, they are not asymptotically accurate. Finally, they do not have symmetrical rejection rates on the left and on the right. Four of the five new techniques are asymptotically accurate but three of these are liberal for small samples. Finally, the relation of confidence intervals with inferential statistics testing is considered.

The hypothalamic-pituitary-gonadal (HPG) and -adrenal (HPA) axes are traditional viewed as mutually inhibitory systems. However, several diurnal studies have reported positive within-person testosterone and cortisol relationships, as evidence of facilitative processes, but with some constraints (e.g., low-frequency sampling, use of static longitudinal models). Continuous-time (CT) models can help illuminate testosterone-cortisol “coupling” by testing for bidirectional, cross-lagged effects. This study investigated diurnal testosterone and cortisol coupling in healthy males (n = 30) using high-frequency sampling protocols. Participants self-collected saliva at work or home using one of three sampling formats; every 10 mins for 9 h, 15 mins for 8 h, and 30 mins for 10 h. After detrending, daily within-person fluctuations in testosterone and cortisol concentration were modeled in a CT framework. Autoregressive effects for each hormone indicated moderate stability over a shorter period (~6 mins), as a mean-reverting process, and higher stability over longer time periods. Cross-lagged effects were also demonstrated, with testosterone showing a positive relationship to cortisol (.12 within-person standardized effect) and cortisol to testosterone (.08). Both linkages followed a non-linear trajectory, rising in strength from a zero-time lag to peak with a lag of ~8 mins before dissipation beyond this period. We verified reports of positive within-person coupling between testosterone and cortisol across the day in healthy men. Added novelty comes from bidirectional and time-lagged associations on hormonal pulses, although the effect sizes were small. Hence, we offer a more nuanced understanding of HPG and HPA crosstalk within a CT framework.

The main purpose of this paper is to investigate D-optimal population designs in multi-response linear mixed models for longitudinal data. Observations of each response variable within subjects are...

Does advanced age give employees an advantage in face of negative work experiences through their higher emotion-regulation competence? Across days, the occurrence of negative work events is associated with fluctuations in attention, motivation, and well-being. This study examined whether these within-person associations are reduced at advanced employee age, indicating higher resilience. The study further investigated the role of emotion-regulation goal activation and strategy use in these associations. Across two work weeks, 123 employees aged 22 to 63 years provided 1,092 daily reports on affective work events, emotion regulation, attentional focus, persistence, and end-of-day affect. On days with negative-events, participants reported higher activation of emotion-regulation goals, lower attentional focus, and higher negative affect at the end of the workday. Effects were intensified on days with highly negative events. Yet, within-person associations of high-intensity events with emotion-regulation goals, attention, and end-of-day negative affect were reduced at higher age. Further analyses that accounted for age differences in emotion-regulation goals suggested that these play a role in age-related reductions in the event-related disturbance of attentional focus and well-being. There was no evidence of age-differential strategy use on eventful days. Findings are in line with proposed mechanisms underlying older employees’ resilience to daily stress.

Postural responses to similar perturbations of standing balance vary widely within and across subjects. Here, we identified two sources of variability and their interactions by combining experimental observations with computational modeling: differences in posture at perturbation onset across trials and differences in task-level goals across subjects. We first collected postural responses to unpredictable backward support-surface translations during standing in 10 young adults. We found that maximal trunk lean in postural responses to backward translations were highly variable both within subjects (mean of ranges = 28.3°) and across subjects (range of means = 39.9°). Initial center of mass (COM) position was correlated with maximal trunk lean during the response, but this relation was subject specific (R(2) = 0.29–0.82). We then used predictive simulations to assess causal relations and interactions with task-level goal. Our simulations showed that initial posture explains the experimentally observed intrasubject variability with a more anterior initial COM position increasing the use of the hip strategy. Differences in task-level goal explain observed intersubject variability with prioritizing effort minimization leading to ankle strategies and prioritizing stability leading to hip strategies. Interactions between initial posture and task-level goal explain observed differences in intrasubject variability across subjects. Our findings suggest that variability in initial posture due to increased sway as observed in older adults might increase the occurrence of less stable postural responses to perturbations. Insight in factors causing movement variability will advance our ability to study the origin of differences between groups and conditions. NEW & NOTEWORTHY Responses to perturbations of standing balance vary both within and between individuals. By combining experimental observations with computational modeling, we identified causes of observed kinematic variability in healthy young adults. First, we found that trial-by-trial differences in posture at perturbation onset explain most of the kinematic variability observed within subjects. Second, we found that differences in prioritizing effort versus stability explained differences in the postural response as well as differences in trial-by-trial variability across subjects.

There is limited research on how the context in which moderate-to-vigorous physical activity (MVPA) occurs influences the relationship between physical activity and affect. This study aimed to investigate how the social context and physical environment enhance the relationship between MVPA and affect in daily life. Overall, 119 adolescents (mean age = 14.7 years) provided information about their core affect, physical environment and social context on multiple occasions over a 4-day period using ecological momentary assessment. Additionally, participants' level of MVPA was objectively measured using accelerometers. Level of MVPA was positively associated with energetic arousal, being outdoors was positively associated with valence and energetic arousal, and being with someone else was also positively associated with energetic arousal. Additionally, being outdoors moderated the association between MVPA and tense arousal so that MVPA was only inversely related to tense arousal when outdoors. These findings showed that young people experience more positive valence, greater levels of energetic arousal and less tense arousal when physically active outdoors compared to when indoors and highlight the importance of encouraging young people to participate in physical activity outdoors. Further research is warranted to understand how social contexts may influence the association between MVPA and affect in young people.

Step length asymmetry (SLA) is common in most stroke survivors. Several studies have shown that factors such as paretic propulsion can explain between-subjects differences in SLA. However, whether the factors that account for between-subjects variance in SLA are consistent with those that account for within-subjects, stride-by-stride variance in SLA has not been determined. SLA direction is heterogeneous, and different impairments likely contribute to differences in SLA direction. Here, we identified common predictors between-subjects that explain within-subjects variance in SLA using sparse partial least squares regression (sPLSR). We determined whether the SLA predictors differ based on SLA direction and whether predictors obtained from within-subjects analyses were the same as those obtained from between-subjects analyses. We found that for parti-cipants who walked with longer paretic steps paretic double support time, braking impulse, peak vertical ground reaction force, and peak plantarflexion moment explained 59% of the within-subjects variance in SLA. However the within-subjects variance accounted for by each individual predictor was less than 10%. Peak paretic plantarflexion moment accounted for 4% of the within-subjects variance and 42% of the between-subjects variance in SLA. In participants who walked with shorter paretic steps, paretic and non-paretic braking impulse explained 18% of the within-subjects variance in SLA. Conversely, paretic braking impulse explained 68% of the between-subjects variance in SLA, but the association between SLA and paretic braking impulse was in the opposite direction for within-subjects vs. between-subjects analyses. Thus, the relationships that explain between-subjects variance might not account for within-subjects stride-by-stride variance in SLA.

This study evaluated an academic counseling program called the University Turn Around Program (U-Turn) for college students experiencing mental health concerns and low academic achievement. Forty-t...

Naturalistic imaging paradigms, in which participants view complex videos in the scanner, are increasingly used in human cognitive neuroscience. Videos evoke temporally synchronized brain responses that are similar across subjects as well as within subjects, but the reproducibility of these brain responses across different data acquisition sites has not yet been quantified. Here we characterize the consistency of brain responses across independent samples of participants viewing the same videos in fMRI scanners at different sites (Indiana University and Caltech). We compared brain responses collected at these different sites for two carefully matched datasets with identical scanner models, acquisition, and preprocessing details, along with a third unmatched dataset in which these details varied. Our overall conclusion is that for matched and unmatched datasets alike, video-evoked brain responses have high consistency across these different sites, both when compared across groups and across pairs of individuals. As one might expect, differences between sites were larger for unmatched datasets than matched datasets. Residual differences between datasets could in part reflect participant-level variability rather than scanner- or data-related effects. Altogether our results indicate promise for the development and, critically, generalization of video fMRI studies of individual differences in healthy and clinical populations alike.