Validity and Reliability in Learning and Assessment

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Validity and Reliability in Learning and Assessment by Mind Map: Validity and Reliability in Learning and Assessment

1. Reliability coefficients

1.1. -Group variability affects the size of the reliability coefficient.

1.2. -Scoring reliability limits test score reliability.

1.3. -All other factors being equal, the more items included in a test, the higher the reliability of the scores.

2. Methods of estimating reliability:

2.1. -test-retest or stability

2.2. -alternative form

2.3. -internal consistency

2.3.1. -split-half methods

2.3.2. -Kuder-Richardson methods

3. content validity evidence

3.1. -is assessed by systematically comparing a test item with instructional objectives to see if they match

3.2. -does not yield a numerical estimate of validity

4. Reliability

4.1. -refers to the stability of a test score over repeated administrations.

5. criterion-related validity evidence

5.1. concurrent validity evidence

5.1.1. -is determined by correlating test scores with a criterion measure collected at the same time.

5.2. predictive validity evidence

5.2.1. -is determined by correlating test scores with a criterion measure collected after a period of time has passed.

5.3. -established by correlating test scores with an external standard or criterion to obtain a numerical estimate of validity evidence

6. construct validity evidence

6.1. -is determined by finding whether test results correspond with scores on other variables as predicted by some rationale or theory

7. Taken from Educational Testing & Measurement, Kubiszyn & Borich, 2010