ResearchMethods2

ResearchMethods2 - RESEARCH METHODS II ROADMAP!Verification of Assessments!A Closer Look at Reliability!A Closer Look at Validity!Relationship of

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1 R ESEARCH M ETHODS II ROADMAP ! Verification of Assessments ! A Closer Look at Reliability ! A Closer Look at Validity ! Relationship of Reliability and Validity TERMINOLOGY ! Construct ! Psychological entity that cannot be directly observed ! Must infer its existence from other sources of data
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2 VERIFICATION OF ASSESSMENTS ! Triangulation ! Differentiation VERIFICATION OF ASSESSMENTS ! Validity ! Reliability ! Generalizability RELIABILITY: A CLOSER LOOK ! Definition: the consistency of your results ! Error: extraneous influence on measurement ! Aggregation ! Examples…
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3 MEASURING KASEY’S RESPONSIBILITY LEVEL: HOW RESPONSIBLE IS KASEY ON A SCALE FROM 1 TO 10? Fred = 7 Average = 7 Jenny = 7 Sam = 5 Susan = 7 Jared = 5 Andrea = 7 Average = 6.2 Charlotte = 7 Janet = 5 Sophia = 5 Marcus = 6 David = 4 Joseph = 5 Lauren = 7 Sarah = 4 Diane = 5 Donald = 5 Average = 5.3 RESPONSIBILITY QUESTIONNAIRE QUESTIONS ARE ANSWERED ON A 5-POINT SCALE, 1=STRONGLY DISAGREE, 5=STRONGLY AGREE RESPONSES ARE AVERAGED TO GET SCORE. Questionnaire 1
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This note was uploaded on 10/17/2011 for the course PSY 331 taught by Professor N/a during the Fall '06 term at SUNY Buffalo.

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ResearchMethods2 - RESEARCH METHODS II ROADMAP!Verification of Assessments!A Closer Look at Reliability!A Closer Look at Validity!Relationship of

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