Timed motor function test using video-based observation and online-based observation methods among typically developing children: A reliability and validity study

Objectives This study evaluated intra-rater (IR), test-retest reliability (TR), and concurrent validity of 10-m walk test (10mWT), a timed motor function test (TMFT) using video- (VBO) and online-based (OBO) observation with direct observation (DO). Methods Seventy five (n = 75) middle school going typically developing children performed repeated sessions of 10mWT to determine validity and reliability of VBO and OBO with DO. IR and TR reliability were calculated using the intraclass correlation coefficient (ICC). The correlation between sessions of VBO, OBO methods, and DO method were evaluated to estimate the concurrent validity. Results Good IR and TR reliability of VBO and OBO methods were observed (IR: ICC = 0.90 [VBO], 0.78 [OBO]; TR: 0.84 [VBO], 0.85 [OBO]). Correlations between VBO (r s = 0.86; p <0.001) and OBO (r s = 0.85; p <0.001) methods with DO method demonstrated good concurrent validity. Conclusions VBO and OBO methods can be used in clinical settings where DO method is not feasible.