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John Has Created a Scale That Measures "Extraterrestrial Communication Competence

Question 29

Multiple Choice

John has created a scale that measures "extraterrestrial communication competence." John is torn between which type of validity testing he should employ. Which approach to validity should John utilize?


A) retrospective and face validity
B) face and predictive validity
C) concurrent and construct validity
D) John should employ all approaches to validity that can be employed

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