Validity and Reliability

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Validity and Reliability by Mind Map: Validity and Reliability

1. Criterion Related Validity

1.1. Two Types:

1.2. Concurrent

1.3. Predictive

1.3.1. The concurrent validity evidence for a test is determined by administering both the new test and the established test and the find the correlation between both sets of the test scores

1.3.2. Predictive validity evidence refers to how well the test predicts some future behavior of the examinees

1.3.3. Content, Concurrent, and Predictive assume that some criterion exist external to the test that can be used to anchor or validate the test.

2. Content Validity

2.1. Comparing test items with instructional objectives

2.2. Determines whether the items match or measure the objective

2.2.1. Human judgement is relied upon

2.2.1.1. Books

2.2.1.2. News sources

2.2.1.3. Blogs

2.2.1.4. Supporting Data

2.2.1.4.1. Expert reports

2.2.1.4.2. Third party research

2.2.1.4.3. Survey data

2.2.1.4.4. Size of topic

3. Reliability

3.1. Test-Retest

3.2. Alternative form

3.3. Internal Consistency

3.3.1. Simple basic measure

3.3.2. People who get one item right will more than likely get similar items right

3.3.3. Split Halves

3.3.4. Splitting the test in two equivalent halves and determining the correlation between them

4. Test-Retest

4.1. The test is given twice and then there is a correlation between the first set of scores and the second set of scores

5. Discussion Two

5.1. Deadlines

5.2. Contacts

6. Alternative form

6.1. Two equivalent forms of a test can be used to obtain the reliablity of the scores from the test

7. Validity

8. Kubiszyn, T. 2010. Educational Testing and Measurement. Vital Source Book Shelf. John Wiley and Sons. Thursday March 22, 2012.