In everyday language, the term validity is typically used to describe something as being trustworthy or legit. It's meaning in psychology suggests something similar—it's all about whether we can trust ...

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 ...

NEW ORLEANS (WVUE) - When a doctor gives a test to determine if a patient has a potentially serious disease -- doctors and patients rely on that test to be accurate. But questions have surfaced on a ...

The 6-minute pegboard and ring test can be used as a valid and reliable test to evaluate functional arm exercise capacity in patients with well-controlled asthma. The 6-minute pegboard and ring test ...