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 ...

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

1. What is the difference between the reliability and validity of a measurement? The validity of a measure is the extent to which differences in scores on the instrument reflect true differences among ...

Stakeholders in US healthcare are increasingly seeking to measure and improve efficiency. This article describes an efficiency concept and some practical measurement challenges. We searched the ...

Journal for Research in Mathematics Education. Monograph, Vol. 15, Psychometric Methods in Mathematics Education: Opportunities, Challenges, and Interdisciplinary Collaborations (2016), pp. 155-174 ...