PSY 3010 Lecture Notes - Lecture 11: Face Validity, Driving Test, Internal Consistency
Document Summary
Chapter 11: establishing the validity and reliability of. Validity: appropriateness, quality, or accuracy of research , applied to research as a whole, applied to particular steps. Is the instrument measuring what it was intended to measure: do the empirical indicators really get at the meaning of the concept? (this is how we will use the term primarily) Types of validity: logic, face, content, statistical, concurrent, predictive, construct. Content validity: the set of indicators cover the full range of meaning of the concept, in a balanced way. Important in use with scales: for example: drinking being measured by, amount, alcohol content (type, magnitude, frequency. Concurrent validity: your assessment relates to some other assessment which affirms your legitimacy, act vs sat. Is able to forecast a future outcome: driving test score> future driving record, act> success in college. Construct validity: a measure based on statistics. Basically, the greater the variance explained by the constructs (all the aspects measured), the greater the validity.
