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: ...

“With any other sample, if you have 43% getting a different score, everyone would begin to question: OK, wait a minute, how valid and reliable is this?” It’s unclear which of DISD’s ...

Some of these include: While validity examines how well a test measures what it is intended to measure, reliability refers to ...

Ever read some new scientific study and thought, “Can I trust this?” Well, you’re not alone. With all of the research fl ...

Much of what the DigitalPlus team learned is still true today. The TV set-top box data had good reliability and poor validity. Meaning the results were consistent; however, they weren’t right.

Background The aim of this study was to evaluate the test-retest reliability and the validity of the self-reported questionnaire Olerud-Molander Ankle Score (OMAS) in subjects after an ankle fracture.

“We need to know how to measure these outcomes in the best way possible, so that we generate valid and reliable data that capture the differences among subgroups of the pediatric survivor ...