The purpose of this study was to estimate validity and reliability for RT31 monitors when worn by 19 school age participants with visual impairments during physical education. Values from RT3 monitors were compared to observational data using the Children’s Physical Activity Form (CPAF). Estimates of reliability for the RT3 monitors were calculated by placing two monitors on participants during data collection and then calculating intraclass correlations using repeated measures. Validity estimates between RT3 monitors and CPAF scores resulted in a strong relationship (R = .89, p < .001, n = 19). Validity and reliability estimates indicate that the RT3 is a useful tool for measuring short term physical activity levels in adolescents with visual impairments.
Francis M. Kozub and Hyun-Kyoung Oh are with the Department of Kinesiology at Indiana University, 47405. E-mail: firstname.lastname@example.org. Robert A. Rider is currently the Dean of the College of Education, Health, and Human Sciences at the University of Tennessee, Knoxville 37996. E-mail: email@example.com.