RESEARCH STUDY 5.2 Dr. Sheffield Is a Clinical Psychologist Who Specializes in Treating

RESEARCH STUDY 5.2
Dr. Sheffield is a clinical psychologist who specializes in treating pathological gambling. Pathological gambling is defined as being unable to resist impulses to gamble. Bothered by not having a good measure that he can give to clients to determine whether they are suffering from this condition, he creates a new measure of pathological gambling. The measure has 15 questions and it takes 20 minutes to complete.
-Refer to Research Study 5.2 above to answer the following question. Dr.Sheffield has decided to test the discriminant validity of his new measure.He has a group of first-time GA attendants complete his measure,and finds that they score higher than a group of people who do not attend the group.Which of the following results would provide evidence for discriminant validity?

A) He finds that the GA attendees score higher on his measure than the non-GA attendees.
B) He finds that the GA attendees score higher on his measure than the non-GA attendees, and they also score higher than a group of people attending Alcoholics Anonymous meetings (who are addicted to something different) .
C) He finds that more recent GA joiners score higher than veteran GA attendees, who are more recovered.
D) He finds that the measure he used is also associated with people's past diagnoses of pathological gambling.
E) None of the above provide evidence.

Correct Answer:

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