Multiple Choice
Dr. Vela is studying comorbid substance use disorders and anxiety disorders among African Americans, Caucasians, Hispanic Americans, and Native Americans between 15 years and 65 years of age. Dr. Vela is using a:
A) multigroup design.
B) factorial design.
C) case study design.
D) repeated measures design.
Correct Answer:

Verified
Correct Answer:
Verified
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