Reliability and Validity importance of assessments and learningby Shlonda McCoy
1. Strengths
1.1. Content validity:Checks to see if the test measures the instructional objective
1.2. Concurrent criterion-related validity: can be given at the same time for validation.
2. Opportunities
2.1. Content Validity: can be a negative or positive correlation
2.2. Concurrent criterion-related validity: less expensive, or shorter, or can be administer in groups.
3. Predictive criterion-related validity:good for aptitude tests
4. Predictive criterion-related validity: can measure something worthwhile
5. Construct Validty:There is a relationship to other information which corresponds well with some theory.
6. Test-retest reliability: is given twice
7. Test-retest reliability: opportunities for change: longer intervals between tests.
8. Alternate forms: Two equivalent test forms and eliminates memory
9. Internal Consistency: items should be correlated
10. Internal consistency: free from memory and involves one administration
11. Weaknesses
11.1. Content validity: gives info that the test is valid but not the reading level or if conctruction is poor and it is the minimum requirement for a useful test rather than a good test.
11.2. Predictive criterion related validity:does not measure whether the test does a good job of predicting.
12. Threats
12.1. Content Validity: Correlation and causality can be confused
12.2. Construct Validity: has no accepted second measure
13. Construct Validity: has no anchor
14. Test-re-test reliability: some memory or experience is involved.
15. Test-re-test reliability: students remember or if long interval can forget
16. Alternate forms: takes a great deal of effort to develop one good test.
