PSYB32H3 Lecture Notes - Lecture 4: Rorschach Test, Criterion Validity, Clinical Pathology

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9 Oct 2013
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Reliability and validity in assessment: reliability consistency of measurement. Test-retest reliability related to how a test looks over time if you run it twice. It should have the same scores if the same individual takes the test twice. Sometimes we don"t want test-retest reliability to be high, i. e. a depression level test after treatment. Alternate-form reliability certain tests are influenced by practice effects, therefore we measure the same construct with different content. Reliability between scores between two different versions of test. Internal consistency reliability relates to actual content of test. Patient"s test scores should be reliable and consistent across the entire test. Inter-rater reliability-- how reliable two different clinicians will look at a patient and come up the same results: validity whether or not the test is measuring what it is supposed to measure. Content validity test must have enough content on it to completely measure what it is supposed to measure.

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