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Unformatted text preview: Measurement validity vs measurement reliability Measurement validity • A valid measure captures the true meaning of the concept being measured, e.g.: o Face validity: does it seem accurate o Predictive validity: does it predict to a future measure of the same concept? o Construct validity does it relate to other concepts in logical ways? Measurement reliability • Observed measurement = true score + error • Measurement reliability: a reliable measure is stable, consistent, & has little measurement error o Stable meaning it is consistent across people • Error o Measurement error o Random error Bad mood? A leading question? Typo? Black Dolls vs. White Dolls • Could race of researcher (African American) be a threat to the internal validity of the research? • Independent variable: race of the children • Dependent variable: reaction towards dolls •...
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This note was uploaded on 02/16/2012 for the course COMM 04:192:300 taught by Professor Katz during the Fall '11 term at Rutgers.
- Fall '11