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Unformatted text preview: dity (rxy)
Extent to which inferences made from scores
on a test are accurate and meaningful
The ultimate goal: Construct Validity
Construct Validity To what extent does a measure really reflect the
Construct Contamination 5 Establish Validity and Reliability
Cannot establish validity and reliability on
a single item.
Must consider 3+ numeric items that
measure the same thing or are part of the
same scale (e.g., Convenience Scale)
same Establish Validity and Reliability
STEP 1: Run Factor Analysis to test
Construct Validity of measurement model
(test for number of factors and test item(test
construct links) May change # of factors &/or drop bad items STEP 2: Run Reliability Analysis (α > .7)
STEP 3: D...
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This document was uploaded on 02/19/2014.
- Spring '14