A Model for Estimating the Reliability of Psychomotor Test Batteries

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Abstract
Some types of motor behavior cannot be measured by one test alone. For example, physical fitness is typically viewed as a multifaceted construct which should be measured by a battery comprising a group of tests. Test developers typically report a reliability estimate for each individual test in the battery. If the reliability of each test is acceptable, the reliability of the test battery is assumed to be satisfactory. However, measurement error can affect the total battery as well as each individual test. A proposed model for estimating test battery reliability based upon canonical correlation analysis is described in this paper. Descriptive statistics from previous investigations and nonempirical data are used to exemplify the procedure. Finally, modifications of the model for psychomotor test batteries are delineated.