Validity and Reliability

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Validity and Reliability by Mind Map: Validity and Reliability

1. Criterion-Related Validity

1.1. Correlation of scores to established external standards

1.2. Concurrent Criterion-Related Validity

1.2.1. Scores from new test and a test with verified validity correlated

1.3. Predictive Criterion-Related Validity

1.3.1. Scores from initial test and subsequent test compared to predict behavior

2. Construct Validity

2.1. Test results consistent with expectations

3. Content Validity

3.1. Test items match instructional objects

4. Internal Consistency

4.1. Correlation of test items corresponding to same concept within the test

4.2. Split Halves

4.2.1. Correlation determined after test split into two equal parts

4.3. Kuder-Richardson Method

4.3.1. Consistency among the measures of test items within the same test

5. Alternative or Equivalence Reliability

5.1. Correlated scores from two equal versions of a test administered

6. Validity

6.1. Assessment measures what it is supposed to measure

7. Reliability

7.1. Assessment produces similar scoring rankings on multiple occasions

8. Reference Kubiszyn, T. & Borich, G. (2010). Educational testing & measurement: Classroom application and practice (9th ed.). John Wiley & Sons, Inc., Hoboken, NG.

9. Test-retest Reliability

9.1. Comparison of scores from same test administered on two separate occasions

10. Importance of Validity & Reliability

10.1. Test must be valid and reliable to have usefulness

10.2. Increase in score accuracy when test is valid and reliable

10.3. More informed decisions regarding student learning

10.4. Accurate results allow for proper instructional modifications and adjustments to assessment