The method(s) used most often in assessing the score validity of questionnaires require(s) the use of
A) a follow-up interview.
B) direct observation of behavior.
C) equivalent forms of the questionnaire.
D) a and b

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The Answer of The method(s) used most often in assessing the score validity of questionnaires require(s) the use of
A) a follow-up interview.
B) direct observation of behavior.
C) equivalent forms of the questionnaire.
D) a and b

The Method(s) Used Most Often in Assessing the Score Validity