There is a distinction that one learns about on the first day of a course in psychological research methods. It is the difference between internal and external validity. Internal validity is ...

When investigators think of generalizability, they typically think of extrapolating the results to other patient populations, depending on whether patients were selected for the study by means of ...

The information needed to determine the internal and external validity of an experimental study is discussed. Internal validity is the degree to which a study establishes the cause-and-effect ...

In everyday language, the term validity is typically used to describe something as being trustworthy or legit. It's meaning ...

Validity testing in neuropsychological assessment is a critical component that ensures the accuracy and interpretability of test outcomes. By examining both performance and response patterns, ...