Reliability And Validity Of A Self-report Scale Of Sedentary Time In Children

Therefore, the purpose of this study was to determine the reliability and validity of a comprehensive self-report SB scale. A convenience sample included 18 children (16 girls, 2 boys) aged 7-11 years from an ongoing training study. The self-report SB scale was administered on days one and eight, en...

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Published in:Medicine and science in sports and exercise 2012-05, Vol.44 (5S), p.679-679
Main Authors: Rosenkranz, Sara K, Rosenkranz, Richard R, Hastmann, Tanis J, Harms, Craig A
Format: Article
Language:English
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Summary:Therefore, the purpose of this study was to determine the reliability and validity of a comprehensive self-report SB scale. A convenience sample included 18 children (16 girls, 2 boys) aged 7-11 years from an ongoing training study. The self-report SB scale was administered on days one and eight, encompassing one week of Actical accelerometer-based monitoring. Twelve items from the SMART Student Questionnaire were used to assess six SB components at the four time points: watching TV, playing video games, computer use, homework, art, and quiet games indoors. Internal consistency for the 12-item SB scale ranged from alpha =0.392 - 0.711 across the four time points. The two assessments of one-week test-retest reliability showed ICC = -0.02, 95% CI = -1.73 - 0.62 and ICC = 0.77, 95% CI = 0.37 - 0.92. For convergent validity, the SB scale correlations ranged from [rho]=0.18 (p=0.58) to [rho]=0.19 (p=0.49) with Actical, and [rho]=0.11 (p=0.68) to [rho]=0.44 (p=0.09) with the PDPAR.
ISSN:0195-9131