This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
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 •...
View Full Document
- Fall '11
- internal validity, Measurement validity vs