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PSYB32H3 (1,174)
Chapter 4

Chapter 4

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Department
Psychology
Course
PSYB32H3
Professor
Konstantine Zakzanis
Semester
Fall

Description
Chapter 4Clinical Assessment ProceduresReliability and Validity in AssessmentReliabilityGenerally reliability refers to consistency of measurementInterrater reliability the degree to which two independent observers or judges agreeTestretest reliability measures the extent to which people being observed twice or taking the same test twice maybe even several weeks or months apart score in generally the same wayoOnly makes sense when the theory assumes that people will not change appreciably between testing on the variable being measured ex IQAlternateform reliability using two forms of tests rather than giving the same test twice perhaps when there is concern that people will remember their answers from the first test and aim merely to be consistentInternal consistency reliability assesses whether the items are related to one another like on an anxiety questionnaire all the questions are related to anxietyoThe higher correlation the better the reliabilityValidityGenerally is related to whether a measure fulfills its intended purposeRelated to validity unreliable measure will have good validityContent validity whether a measure adequately samples the domain of interestCriterion validity evaluated by determining whether a measure is associated in an expected way with some other measure the criterionoAka Concurrent validityoThat is actually shows that say depressed people show depressed scores and not depressed people dontoPredictive validity evaluating the ability of the measure to predict some other variable that is measured in the future IQ on future school experienceConstruct validity relevant when we want to interpret a test as measure of some characteristic or construct that is not simply defined like anxiousness or distorted cognitionoEvaluated by looking a wide variety of data from multiple scoresoIs an important part of the process of theory testingPsychological AssessmentDesigned to determine cognitive emotional personality and behavioural factors in psychopathological functioningClinical InterviewsThe interviewer uses language as the principle mean to finding out about another
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