Criterion-Based Validity Evidence

Criterion-based validity evidence is frequently referred to as criterion-based validity, criterion-related validity, or simply criterion validity. In social science research, understanding the psychometric properties of an instrument is essential. These important psychometric properties include reliability and several types of validity. Thus, a researcher must often assess the evidence for the face validity, construct validity, content validity, and/or criterion-based validity of the instruments used in research. Although all forms of validity evidence indicate how well a measure measures what it is supposed to measure, criterion-based validity evidence is related to how accurately one measure predicts the outcome of another criterion measure. If a measure is a valid indicator of a construct of interest, then that measure could be used to predict the values of other measures ...