Reliability of Selected Health and Performance Related Test Items from the Project Unique Physical Fitness Test Inventory

Abstract

This study was conducted to determine several psychometric qualities on selected items from the Project UNIQUE Physical Fitness Test Inventory. Coefficients of reliability (consistency within day and between day) were determined by intraclass techniques. The standard error of measurement was also determined for the selected items. In addition, the appropriate criterion score was determined by an analysis of variance and collaborated by an analysis of the superdiagonal of the inter-trial correlation matrix. For the multi-trial test items, 50 nonimpaired youth, 50 visually impaired youth, 50 auditory impaired youth, and 50 orthopedically impaired youth between the ages of 10 and 17, were randomly selected from the various schools participating in the Project UNIQUE study. Subjects for the single-trial items included 50 nonimpaired youth, 47 visually impaired youth, and 50 auditory impaired youth, between the ages of 10 and 17 randomly selected from at least two different schools in the Rochester, N.Y. and Buffalo, N.Y. areas. The results of this study showed that most of the test items were reliable. In addition, the reliability of the test items for the impaired groups was, in general, equal to or better than the reliability coefficients for the nonimpaired group. The results also indicated that in most cases the Project UNIQUE scoring procedures were appropriate, although some changes were recommended.