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 ...

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 ...

This multi-pronged historical project consisted of two major components, the first of which has involved an examination of the historical and philosophical roots of construct validation theory by ...

Opening Remarks to the Special Issue on Validity Theory and the Methods Used in Validation: Perspectives from the Social and Behavioral Sciences Opening Remarks to the Special Issue on Validity Theory ...