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Chapter 3 Moving from fact to truth: Validity, reliability, and measurement
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Validity Internal validity External validity Construct validity Conceptual validity
Reliability Temporal consistency / test-retest reliability Internal consistency Interobserver agreement The “more is better rule” of reliability
Measurement Scales Nominal scales Ordinal scales Interval scales Ratio scales The validity of measurement assumptions
Key Terms from Chapter 3 Internal validity External validity Construct validity Conceptual validity Interobserver agreement Interrater reliability Covariation Temporal sequence Confederates Third-variable problem Confounds Internal consistency Temporal consistency Test-retest reliability “More is better” rule Nominal scale Ordinal scale Interval scale Ratio scale Jerry Derryberry, Jr.
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