Chapter : PSYC 3140 CH 3

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3 Nov 2022
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The most predominant theoretical orientation is cognitive. Inter-rater reliability : measures the degree to which two independent observers or judges agree. Test-retest reliability: measures the extent to which people being observed twice or taking the same test twice, score in generally the same way. Alternate-form reliability: sometimes psychologists use two forms of a test rather than giving the same test twice, because people may remember they answers from first one. Internal consistency reliability assesses whether the items on a test are related to one another. Validity: the extent to which a measure fulfills its intended purpose. Content validity is the extent to which a measure adequately samples the domain of interest. Criterion validity is evaluated by determining whether a measure is associated in an expected way with some other measure (the criterion). Construct validity is relevant when we want to interpret a test as a measure of some characteristic or construct that is not simply defined.

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