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Objective: To use the Theory of Planned Behavior (TPB) combined with action and coping planning plus global relationship with husband to explain the aspirin adherence in a sample of women with high-risk pregnancy.Methods: A total of 535 Iranian women (mean age = 32.29 ± 4.98; year of marriage = 6.89 ± 3.61) completed the study. Each participant filled out several questionnaires on TPB (i.e., a widely applied theory describing how behaviors are influenced by beliefs, attitudes, perceived behavioral control and behavioral intentions), action planning, coping planning and relationship with husband at baseline. Eight weeks later, each participant completed the Five-item Medication Adherence Rating Scale (MARS-5) and underwent the blood test on aspirin serum level to provide the subjective and objective aspirin adherence information, respectively. Structural equation modeling (SEM) was applied to test three proposed models on aspirin adherence.Results: The TPB with planning plus relationship with husband was supported (comparative fit index = 0.969; Tucker-Lewis index = 0.950). Behavioral intention was the mediator in the associations of aspirin adherence and the following variables: attitude, perceived behavioral control, and relationship with husband. Action and coping planning mediated the associations of aspirin adherence and the two variables of behavioral intention and perceived behavioral control. Relationship with husband mediated the association of subjective norm and aspirin adherence.Conclusions: The TPB model with (action and coping) planning plus relationship with husband serves a potential mechanism to explain the aspirin adherence for women with high risk of pregnancy. Possible implications are discussed based on our results. [ABSTRACT FROM AUTHOR]

Background: This study translated the Adolescent Sleep Hygiene Scale-revised (ASHSr) into Persian and aimed to validate its psychometric properties using classical test theory and Rasch analyses., Methods: Adolescents aged 14-18 (n = 389; 199 males) and their parents in Iran participated in the study. Each adolescent wore a wrist actigraphy device during sleep time and completed the ASHSr, the Depression Anxiety Stress Scale (DASS), the General Health Questionnaire (GHQ), the Pediatric Daytime Sleepiness Scale (PDSS), and the Pittsburgh Sleep Quality Index (PSQI). A parent of each adolescent completed the Sleep Disturbance Scale for Children (SDSC)., Results: The construct validity of the ASHSr was supported by both classical test theory (factor loadings from confirmatory factor analysis [CFA] = 0.64 to 0.88; corrected item-total correlations = 0.70 to 0.92; test-retest reliability = 0.72 to 0.90) and Rasch analyses (infit mean square = 0.73 to 1.30; outfit mean square = 0.74 to 1.32). ASHSr had significantly negative associations with DASS subscales (β = -0.15 to -0.42, ps < 0.001) and GHQ (β = -0.663, p < 0.001). Known-group validity was demonstrated by the significant differences between poor and good sleep hygiene based on ASHSr in the actigraphy measure and scores of PDSS, PSQI, and SDSC. The multigroup CFA and differential item functioning in Rasch analyses suggested that all the participants interpreted the ASHSr similarly, regardless of their gender or living in a private room., Conclusions: The Persian ASHSr demonstrated good reliability and validity in assessing sleep hygiene among Iranian adolescents. Healthcare providers may use it to assess the effectiveness of sleep hygiene programs., (Copyright © 2018 Elsevier B.V. All rights reserved.)

Background and aims The Bergen Social Media Addiction Scale (BSMAS), a six-item self-report scale that is a brief and effective psychometric instrument for assessing at-risk social media addiction on the Internet. However, its psychometric properties in Persian have never been examined and no studies have applied Rasch analysis for the psychometric testing. This study aimed to verify the construct validity of the Persian BSMAS using confirmatory factor analysis (CFA) and Rasch models among 2,676 Iranian adolescents. Methods In addition to construct validity, measurement invariance in CFA and differential item functioning (DIF) in Rasch analysis across gender were tested for in the Persian BSMAS. Results Both CFA [comparative fit index (CFI) = 0.993; Tucker-Lewis index (TLI) = 0.989; root mean square error of approximation (RMSEA) = 0.057; standardized root mean square residual (SRMR) = 0.039] and Rasch (infit MnSq = 0.88-1.28; outfit MnSq = 0.86-1.22) confirmed the unidimensionality of the BSMAS. Moreover, measurement invariance was supported in multigroup CFA including metric invariance (ΔCFI = -0.001; ΔSRMR = 0.003; ΔRMSEA = -0.005) and scalar invariance (ΔCFI = -0.002; ΔSRMR = 0.005; ΔRMSEA = 0.001) across gender. No item displayed DIF (DIF contrast = -0.48 to 0.24) in Rasch across gender. Conclusions Given the Persian BSMAS was unidimensional, it is concluded that the instrument can be used to assess how an adolescent is addicted to social media on the Internet. Moreover, users of the instrument may comfortably compare the sum scores of the BSMAS across gender.