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 ...

Health Education Monographs, Vol. 6, No. 4 (WINTER 1978), pp. 394-405 (12 pages) A multitrait-multimethod design was employed to assess the construct validity of the Health Belief Model. The data were ...

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 ...