5 results on '"Brian, Ali S."'
Search Results
2. Accuracy of the Fitbit Zip for Measuring Steps for Adolescents With Visual Impairments.
- Author
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Haegele, Justin A., Brian, Ali S., and Wolf, Donna
- Subjects
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ACCELEROMETERS , *CONFIDENCE intervals , *DIAGNOSIS , *GAIT in humans , *RESEARCH methodology , *STAFFS (Sticks, canes, etc.) , *T-test (Statistics) , *VISION disorders , *JUDGMENT sampling , *EFFECT sizes (Statistics) , *MEDICAL equipment reliability , *DESCRIPTIVE statistics , *INTRACLASS correlation , *ADOLESCENCE ,RESEARCH evaluation - Abstract
Our purpose in this study was to document the criterion validity of the Fitbit Zip for measuring steps taken by youth with visual impairments (VI). A secondary purpose was to determine whether walking pace, mounting position, or relative position to the user's mobility device impacted the criterion validity of the device. Fourteen adolescent-aged individuals (Mage = 15.4; 13 male and 1 female) with VI participated in this study. Participants wore four Fitbit Zips at different mounting positions and completed two, 2-min walking trials while the lead investigator hand tallied steps. Measurement validity was analyzed using absolute percent error (APE), intraclass correlation coefficients estimated level of conformity, and paired samples t tests and Cohen's d effect sizes assessed APE relative to mounting positions. Results supported the use of the Fitbit Zip during regular-paced walking; however, caution must be used during activities exceeding regular walking speeds, as devices consistently underestimated steps. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
3. A Pilot Investigation of the Perceived Motor Competence of Children with Visual Impairments and Those Who Are Sighted.
- Author
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Brian, Ali S., Haegele, Justin A., Bostick, Laura, Lieberman, Lauren J., and Nesbitt, Danielle
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MOTOR ability , *ANALYSIS of variance , *COMPARATIVE studies , *STATISTICAL correlation , *STUDENTS with disabilities , *SENSORY perception , *PROBABILITY theory , *STATISTICS , *STUDENTS , *T-test (Statistics) , *VISION disorders , *PILOT projects , *DATA analysis , *PHYSICAL activity , *DESCRIPTIVE statistics - Abstract
The article discusses a study that examines the developmental trajectory of perceptions of motor competence of children ages 3 to 13 years with and without visual impairments. Study highlights include the use of the United States Association of Blind Athletes system, the Test of Perceived Motor Competence for Children with Visual Impairments, and the use of Pearson Product Moment correlations to examine links among age and perceptions of motor competence.
- Published
- 2018
- Full Text
- View/download PDF
4. Who SKIPS? Using Temperament to Explain Differential Outcomes of a Motor Competence Intervention for Preschoolers.
- Author
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Taunton, Sally A., Mulvey, Kelly Lynn, and Brian, Ali S.
- Subjects
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TEMPERAMENT in children , *MOTOR ability in children , *LOCOMOTOR control , *COGNITIVE ability , *AFFECT (Psychology) , *ATTENTION in children , *PRESCHOOL children , *CHILD Behavior Checklist , *CHILD development , *CHILD behavior , *MOTOR ability , *PHYSICAL education , *QUESTIONNAIRES , *TEMPERAMENT - Abstract
Purpose: Although motor skill interventions often improve fundamental motor skills (FMS) during preschool, the extent of individual children's success in development of FMS still varies among children receiving the same intervention. Temperament is multifaceted and includes negative affect (high levels of frustration or anger), effortful control (focus, self-regulation, and concentration), and surgency (energy and activity level). Temperament often influences cognitive, social, and behavioral outcomes and may be a significant factor in the development of FMS. The purpose of this study was to examine the influence of temperament on children's improvement in FMS within a gross motor intervention.Method: Participants (N = 80; Mage = 55.36 months, SD = 6.99 months) completed the Test of Gross Motor Development-Second Edition prior to and after intervention. Teachers completed the Child Behavior Questionnaire-Very Short Form to examine each child's temperament. To account for possibility of a Type 1 error, we conducted 6 separate 2 (temperament variable: high, low) × 2 (treatment: intervention, control) analyses of covariance and examined posttest scores for locomotor and object-control skills with pretest scores as covariates among participants with high and low surgency, negative affect, and effortful control.Results: Results revealed children with low levels of negative affect and surgency and high levels of effortful control demonstrated greater gains (ηp2 = .05-.34) in both locomotor and object-control skills during motor skill intervention compared with their peers.Conclusion: Providing interventions tailored to temperamental profiles could maximize gains in FMS through intervention. [ABSTRACT FROM AUTHOR]- Published
- 2018
- Full Text
- View/download PDF
5. The Development and Validation of a Golf Swing and Putt Skill Assessment for Children.
- Author
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Barnett, Lisa M., Hardy, Louise L., Brian, Ali S., and Robertson, Sam
- Subjects
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MOTOR ability , *ANALYSIS of variance , *CONFIDENCE intervals , *DELPHI method , *DISCRIMINANT analysis , *EXPERIMENTAL design , *GOLF , *RESEARCH methodology , *PROBABILITY theory , *RESEARCH funding , *STATISTICS , *T-test (Statistics) , *VIDEO recording , *DATA analysis , *STATISTICAL reliability , *INTER-observer reliability , *RESEARCH methodology evaluation ,RESEARCH evaluation - Abstract
The aim was to describe development of a process-oriented instrument designed to assess the golf swing and putt stroke, and to assess the instrument’s discriminative validity in terms of age and reliability (intra-rater and re-test). A Delphi consultation (with golf industry professionals and researchers in movement skill assessment) was used to develop an assessment for each skill based on existing skill assessment protocols. Each skill had six components to be marked as present/absent. Individual scores were based on the number of performance components successfully demonstrated over two trials for each skill (potential score range 0 to 24). Children (n = 43) aged 6-10 years (M = 7.8 years, SD = 1.3) were assessed in both skills live in the field by one rater at Time 1(T1). A subset of children (n = 28) had consent for assessments to be videoed. Six weeks later 19 children were reassessed, five days apart (T2, T3). An ANOVA assessed discriminative validity i.e. whether skill competence at T1 differed by age (6 years, 7/8 years and 9/10 years). Intraclass correlations (ICC) assessed intra-rater reliability between the live and video assessment at T1 and test-retest reliability (between T2 and T3). Paired t-tests assessed any systematic differences between live and video assessments (T1) and between T2 and T3. Older children were more skilled (F (2, 40) = 11.18, p < 0.001). The live assessment reflected the video assessment (ICC = 0.79, 95% CI 0.59, 0.90) and scores did not differ between live and video assessments. Test retest reliability was acceptable (ICC = 0.60, 95% CI 0.23, 0.82), although the mean score was slightly higher at retest. This instrument could be used reliably by golf coaches and physical education teachers as part of systematic early player assessment and feedback. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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