A professional counselor is interested in finding a measure…
A professional counselor is interested in finding a measure that expresses clients’ levels of depression to use in her practice. Specifically, she wants to administer the measure over the course of the counseling at regular intervals to document the efficacy of the intervention she employs. It is important, therefore, that the measure has good test-retest reliability. As she looks through the information available on different publishers’ websites, what statistic, in particular, should this counselor focus on so she can select a measure with the strongest test-retest reliability.
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