Validity and Reliability

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Validity and Reliability by Mind Map: Validity and Reliability

1. Validity: simple put it is accuracy

1.1. Face Validity: a value that is surface deep, it is the easiest form to see

1.2. Construct Validity: a panel of experts on the subject being assessed check over the matter to ensure it is accurate

1.3. Criterion-Related Validity: used to estimate future results using correlation tests and other criteria

1.4. Formative Validity: used to measure how affective a method is for teaching or assessing

1.5. Sampling Validity: use parts from several tests and assessments to determine effectiveness

2. Reliability: knowing that the results can be trusted to be accurate

2.1. Test-retest reliability: use the same test twice over a period of time to compare the scores

2.2. Parallel forms reliability: use different types of assessment but the same information to check and see how well students can learn and understand

2.3. Internal consistency reliability: different styles of assessment that use the results of a set of tests to determine whether they are effect of not

2.3.1. A) Average inter-item correlation: different questions on a test or assessment that focus on the same skill or ability, used to see if wording effects results. Generally questions are part of pair or sets, but each assessment has several different sets

2.3.2. B) Split-half reliability: the entire test or assessment focuses on just one subject to determine understanding and usefulness

3. Validity and Reliability

3.1. Together, they test the integrity of the system and insure that it stays accurate

3.2. Always be careful about how assessments are designed, they should be kept balanced so that they actually work to assess the subject matter