PSY240H1 Chapter Notes - Chapter 4: Millon Clinical Multiaxial Inventory, Rorschach Test, Magnetic Resonance Imaging
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PSY240H1 Full Course Notes
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Abnormal psychology: chapter 4 psychological assessment and research methods. To be useful, a test must be both reliable and valid. Test-retest reliability: refers to the degree to which a test yields the same results when it is given more than once to the same person. One problem is a person may improve on a test the second time around because of practice" with the procedures/familiarity with questions. Alternate-form reliability: test designers prepare two forms of the same test (what is the test trying to measure) using different wording or questions. A high correlation between scores on 1st and 2nd test demonstrate alternate-form reliability. Internal consistency: refers to the degree of reliability within a test. i. e. to what extent do different parts of the same test yield the same results. Split-half reliability: evaluated by comparing responses on odd-numbered test items with responses on even-numbered test items.
