Measuring Rhythmic Ability: Validation of a Digital Rhythmic Ability Evaluation Tool (DRAET)
Keywords:rhythmic ability, accelerometer sensors, reliability, validity, Physical Education
This study aimed (a) to create a digital rhythmic ability evaluation tool (DRAET) that could record, compare, and appraise coordinated motions of subjects' body parts, using accelerometer sensors with various music rhythms, and (b) to certify and validate the DRAET, compared with an accepted rhythmic ability evaluation methodology (i.e., the High/Scope Beat Competence Analysis Test, H/SBCAT). After the DRAET was constructed, 120 individuals (6 to 15 years old) were tested while engaging in seven tasks, toward synchronization with 36 beats at a rhythm of 2/4. Rhythmic performance was simultaneously estimated digitally by the DRAET and H/SBCAT. Correlation analysis via Pearson's r, Cronbach's ?, and kappa coefficients revealed a significant relationship between digital recordings and judges' evaluations through observation in practical tests, certifying its validity and reliability. Results provide preliminary support for the validity and reliability of the DRAET and suggest that it can be used as a tool for measuring rhythmic ability.
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