Multiple Choice
An art therapist collects data from six weekly art therapy sessions conducted at more than one site to show that art therapy reduces the symptoms of depression in clients who have lost a spouse. How could the design be modified to improve external validity?
A) Use more than one test or measurement.
B) Use a protocol or treatment manual to minimize variations in treatment at each site.
C) Use a standard test or measurement rather than a self-report.
D) Eliminate the scores of participants who did not complete the entire 6 weeks of art therapy.
Correct Answer:
Verified
Correct Answer:
Verified
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