![]() The use of warm-up, simulation of convection load, and implementation of race specific hydration practices are important considerations for researchers regarding test validity. ![]() Few studies have assessed the validity of endurance performance tests, and as such more research should evaluate different ways of simulating outdoor performances in the laboratory. Long duration time-trials or the inclusion of sprints within a time-trial appears to not negatively influence reliability. Some of the most commonly used concepts in tests and assessments are validity and reliability (Cohen et al., 2013). While both of these terms are used by researchers in association with precise statistical procedures, this brief will define assessment validity and reliability in a more general context for educators and administrators. A test that is not perfectly reliable cannot be. making sure that test questions focus on material covered in state standards. Time-trial protocols commonly have a coefficient of variation (CV) of <5%, however, familiarization, well-trained subjects and/or conducting the trial outdoors in the athlete’s most familiar environment can lead to CVs of < 1%. While reliability does not imply validity, reliability does place a limit on the overall validity of a test. High validity is also important to ensure test performance reflects true performance. Performance testing protocols must have high reliability to ensure any changes are not due to measurement error or inter-individual differences. ![]() Sports performance testing is one of the most common and important measures used in sport science.
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