Observational analysis shows moderate criterion validity in self-reported 24-hour movement behaviors, indicating useful measure with fair-to-good reliability.
Key Points
Moderate correlations for sleep, sedentary behavior, and light-intensity physical activity were found with device measures.
Reported durations for sleep and moderate-to-vigorous physical activity were less than accelerometer-derived values, demonstrating discrepancies in recall.
Test-retest reliability was assessed with intra-class correlation coefficients, ranging from 0.72 to 0.90 across all behaviors.
Findings underscore that the self-administered questionnaire can accurately assess 24-hour movement behaviors in healthy adults.