HPED 2030 Lecture Notes - Lecture 15: Face Validity, Inter-Rater Reliability

• School: Mount Royal University
• Department: Health and Physical Education
• Course: HPED 2030
• Professor: Sommer Christie

Document Summary

Validity: validity - the extent to which a test measures what it is supposed to measure. It is a trait of the instrument: needs only to be established once, proper use of the instrument should yield truthful results. Logical validity weakest type taken at face values or qualitatively: face validity, content validity, statistical validity stronger type uses statistical analysis (correlation or standard, criterion-based validity, construct validity. Face validity: weakest form of validity, no statistics or numbers to express accuracy, validity issue: accuracy. Criterion-based validity: established when results of one test are compared with the results obtained when using an accepted standard. Concurrent validity: accuracy of estimating current events using present test, compares new measure vs. gold standard, close time proximity, correlation analysis provides index of accuracy. Predictive validity: accuracy of estimating occurrence of future event using present test, correlation analysis provides index of accuracy.