Validity and Reliability

1. Same Time Measurements

2. Refernce

3. Prediction of Future Tests

4. Variables Fitting Theories

5. Concurrent Criterion-Related Validity Evidence

6. Objects and Test Match

7. Kubiszyn, T., & Borich, G. (2010). Educational & testing measurement: Classroom application and practice (9th Ed). Hoboken, NJ: John Wiley & Sons

8. Accuracy

9. "Does the test measure what it is supposed to measure?"

10. Predictive Validity Evidence

11. Construct Validity Evidence

12. Criterion-Related Validity Evidence

13. Content Validity Evidence

14. Validity

15. "Does the test score fairly closely approximate an individual's true level of ability, skill, or aptitude?"

16. Consistent Results on Two Halves of Test

17. Two Different Tests That Have Equal Difficulty Levels & Same Content

18. Consistency of the Test Results/Scores

19. Similiar Test Scores

20. "Does the test yield the same or similar score ranking (all other factors being equal) consistently?"

21. Alternate Forms or Equivalence

22. Split-Half Methods

23. Internal Consistency

24. Test or Re-Test/Stability Reliability

25. Reliability