PSYB01H3 Chapter 5: Chapter 5 Notes
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Test-retest reliability: test re-test reliability: assessed by measuring twice at diff times www. notesolution. com, correlation should be at least 0. 8. could be high b/c ppl remember test, alternate forms of test help. some things aren"t reliable (e. g. mood) and impractical. Internal consistency reliability: reliability using responses from many items at one point: using a lot of items, can be more sure we"re measuring right var. Internal consistency reliability indicators: split-half reliability: correlation of score on 1st half of test with 2nd half. Inter rater reliability: how much raters agree w/ observations: i. e. agreement btw judges, cohen"s kappa indicator or interrater rel. Reliability and accuracy of measures: reliability accuracy, pump that fills up same amt every time is reliable, but if it doesn"t fill up said amount, it is inaccurate. Construct validity of measures www. notesolution. com: construct validity: if op def is accurate, are you measuring what you want.
