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 ...

Reliability and Validity of the Functional Assessment of Cancer Therapy–Ovarian Authors: Karen Basen-Engquist, Diane Bodurka-Bevers, Mary A. Fitzgerald, Kimberly Webster, David Cella, Shaohua Hu, and ...

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 ...

Objective: To provide additional validity data for the Asthma Control Test TM (ACT) using a different criterion measure, setting, and population. Study Design: Cross-sectional survey. Methods: ...

In my previous blog post, I noted that reliability and validity are two essential properties of psychological measurement. Measures of intelligence, personality, vocational interests, and so forth ...