Psychometric Properties of the Arabic Version of the EPInfant Scale among Typically Developing Children Aged 6–16 Years

Abstract

Aims: The EPInfant scale is a self-assessment for children that measures perceived exertion (PE) during physical exercise. This study aimed to translate the scale into Arabic (EPInfant-Ar) and test its psychometric properties. Methods: The revised version was tested for face and content validity. Oxygen saturation, heart rate (HR), and ratings of perceived exertion were measured during a 3-minute step test with a sample of 93 children. PE and HR were examined using the Pearson correlation coefficient (r) to assess the concurrent validity. Internal consistency and test-retest reliability were calculated using Cronbach’s alpha (α), intraclass correlation coefficient (ICC2,1), and r coefficient. A minimum detectable change with 95% confidence interval (MDC95) and percentage of change (MDC%) was also measured. Results: Content validity showed an excellent level of expert agreement. There was a moderate correlation between PE rated by the scale and HR (r = 0.47, p