Clinical and Abnormal Psychology Practice Questions | GRE Subject Test Psychology

Clinical and Abnormal Psychology

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A new DSM-style interview for a disorder yields very similar diagnoses across clinicians (high inter-rater agreement), but later evidence shows the diagnosis does not predict course, impairment, or treatment response and does not correspond to any coherent syndrome. Which conclusion best captures the relationship between diagnostic reliability and validity illustrated here?

Select one option.

High validity is guaranteed when inter-rater reliability is low.
Validity can be high even if reliability is low, because validity only reflects usefulness.
If a diagnosis is reliable, it must also be valid.
Reliability and validity are identical in diagnostic classification.
High reliability is necessary but not sufficient for validity in diagnosis.

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