Validity isn't determined by a single statistic but by a body of research that demonstrates the relationship between the test and the behavior it is intended to measure.

Objectives: To evaluate the reliability and validity of measures taken during the Chester step test (CST) used to predict VO2max and prescribe subsequent exercise.

Papers published in SM are original methodological contributions, including new methodological developments, reviews or illustrations of recent developments that provide new methodological insights, ...

Objective: To evaluate the reliability and validity of a brief physical activity assessment tool suitable for doctors to use to identify inactive patients in the primary care setting. Methods: ...

This study investigated the reliability, validity, and utility of the following three measures of letter-formation quality: (a) a holistic rating system, in which examiners rated letters on a ...

No market-disruptive, ground-breaking idea can be proved using data from the past. How can you possibly use the past to prove the worth of a product that has never existed?

Additional validity and reliability data were obtained from a larger sample (n = 295). The alpha coefficient (internal consistency) for the FACT-B total score was high (alpha = .90), with subscale ...