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Three Accuracy of Measurement
Seven Measuring Health Behavior
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able answer approach assessment audience average basic CAPD chapter Classical test theory clear clinic cluster sampling collect data complete concept concurrent validity construct Construct validity content validity context correcdy criteria Cronbach's Alpha data collection decide dependent variable depends describe developed discrimination effects equal-interval evaluation design example expected extent external validity figure focus focused goals groups havior health education idea important individual instrument measures interpretation interval scale issue item analysis Likert scales mean measure knowledge measurement instruments measures as intended ment methods objectives ordinal scale patients pilot test planned predict present produce program evaluation quantitative questions random sampling scale measurement scale of measurement scores selected self-concept self-report semantic differential sense smoking specific standard statements summarize summated ratings systematic sampling target population things tion trying unsystematic error usually variable want to measure