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PSYC 3020 (2)
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Lecture 6

Week 6 Ch8 9 Notes Outline (Got A+ on the test)

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PSYC 3020
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Week 6Tests and MeasuresChapters 89Chapter 8Evidence of Validity Based on a Tests Relationships with External Criteria CriterionRelated ValidityWhat is CriterionRelated ValidityoCriterionRelated Validity evidence that test scores correlate with or predict indv Behaviors attitudes or eventsoCriterion the measure of performance that we expect to correlate with test scoresoValidity Coefficient correlation coefficient obtained when test scores are correlated with a performance criterion representing the amount or strength of the evidence of validity for the testConcurrent ValidityoConcurrent Evidence for Validity test adm And criterion measurement happen at roughly the same time oSteps Adm Test and criterion measure at the same time to same group of people Correlate tests scores with the criterionConcurrent Validity Example SelfReported Alcoholism and CDISoHypothesis 2 measures of selfreported alcoholism will predict CDIS scores oMethod Adm Selfreported alcoholism and CDIS concurrently to 118 patients in a VA hospitaloResults Selfreported alcoholism 12 and CDIS scores correlated r60 and 75 respectivelyoConclusion Selfreported alcoholism appropriate for diagnosing alcohol dependency Predictive Validity
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