Those of us in the business of psychological measurement use the terms reliability and validity a lot. You've probably seen those terms on the Psychology Today website (they appear thousands of times) ...

Background: Self-report questionnaires play an important role as outcome measures in shoulder research. Having an estimate of the measurement error of these ...

An online survey created as a resource for critical care nurses to assess the health of the work environment is a valid and reliable tool for use by interprofessional patient care teams throughout ...

RESULTS: Internal consistency and test-retest reliability of the FACT-O were adequate. Overall, the scales correlated with other measures as expected; all correlations were in the hypothesized ...

Assessing strength and power is crucial for evaluating muscular performance and function. As laboratory testing can be time-consuming or inaccessible to many athletes, portable accelerometers have ...