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09_15+Conceptualization+and+Measurement+2+-+Ch5

09_15+Conceptualization+and+Measurement+2+-+Ch5 - Sociology...

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1 Sociology SYA4300 Professor Rob White Thursday (9/15) Conceptualization and Measurement 1 ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ III. Measurement Quality 2 A. Reliability : the measure yields consistent scores (when the phenomenon is not changing). B. Validity : the extent to which an empirical measure reflects the real meaning of the concept. ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Measurement Quality 3 Four criteria for high validity in measurement: 1. Face validity. 2. Criterion-related validity. 3. Construct validity. 4. Content validity. ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________
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2 Measurement Quality 4 2. Criterion-related validity. How closely related is our measure to some other measure that we expect is related to the same concept? Uses an external measure (the “criterion”) to check. “Predictive” validity. Examples: test scores ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Measurement Quality 5 3. Construct validity. Uses a measure internal to the data collection (Eg. Marital satisfaction) Do we achieve the expected relationship among a set of related variables?
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