Explain the difference between content validity and predictive validity.
a. Content validity refers to the extent to which a measure covers the full range of the construct being measured, while predictive validity refers to the ability of a measure to predict future outcomes.
b. Content validity is determined by comparing the items in a measure to the underlying theory of the construct, while predictive validity is determined by examining the relationship between the measure and the future outcome it is supposed to predict.
c. Content validity is important for ensuring that a measure accurately represents the construct of interest, while predictive validity is important for determining the practical usefulness of the measure in predicting future outcomes.
d. Content validity is typically established through expert judgment and theoretical analysis, while predictive validity is typically established through empirical research and statistical analysis.