1.1. "The adequency of validity evidence depends on both the strength of the validity coefficient and the purpose the test is being used for." (Kubiszyn & Borich. 2010. p.p. 340)
1.2. "Group variability affects the strength of the validity coefficient." (Kubiszyn & Borich. 2010. p.p. 340)
1.3. "Validity coefficients shouldbe considered in terms of the relevance and reliability of the criterion or standard." (Kubiszyn & Borich. 2010.p.p. 340)
2. Content Validity
2.1. "Do test items match and measure objectives?" (Kubiszyn & Borich. 2010. p.p. 335)
2.2. In order to answer this question you need to match the items with the objectives.
3. Criterion-Related Validity
3.1. "How well does performance on the new test match performance on an established test?" (Kubiszyn & Borich. 2010.p.p. 335)
3.2. "Correlate new test with an accepted criterion, for example, a well-established test measuring the same behavior." (Kubiszyn & Borich. 2010.p.p. 335)
3.3. Predictive Criterion-Related Validity, "can the test predict subsequent performance." (Kubiszyn & Borich. 2010. p.p. 335)
4. Construct Validity
4.1. "A test has construct validity evidence if its relationship to other information corresponds well with some theory." (Kubiszyn & Borich. 2010. p.p. 332)
5. Reliability
5.1. "Group variability affects test score reliability. As group variability increases, reliability goes up." (Kubiszyn & Borich. 2010. p.p. 350)
5.2. "Scoring reliability limits test scores reliability. As scoring reliability goes down, so does the test's reliability." (Kubiszyn & Borich. 2010. p.p. 350)
5.3. "Test length affects test sore reliability. As test length increases, the test's reliability tends to go up." (Kubiszyn & Borich. 2010. p.p. 350)
5.4. "Item difficulty affects test score reliability. As items become very easy or very hard, the test's reliability goes down." (Kubiszyn & Borich. 2010. p.p. 350)
6. Test-Retest or Stability
6.1. Same test twice
6.2. Method of estimating reliability
7. Alternate Forms or Equivalence
7.1. Two alternate or equivalent forms of a test
7.2. Testing time between the two test is short as possible.
8. Internal Consistency
8.1. Split-half methods
8.2. Kuder-Riichardson methods
8.3. "Internal consistency estimates tend to yield inflated reliability estimates for speeded test." (Kubiszyn & Borich. 2010. p.p. 349)
