Validity and Reliability
by Lorraine Rose
1. Reliability is a necessary but not sufficient condition to Validity
2. Validity relates to question about reason ability of content, criterion and construct associated with the learning objectives and assessments.
3. "Did the test we created really measure what we hoped it would measure?"
4. Statistical
5. Evaluative
6. Validity
6.1. Construct
6.1.1. New Node
6.2. Criterion
6.2.1. Concurrent Criterion- Related Evidence
6.2.2. Predictive Validity Evidence
6.3. Content
6.3.1. Spelling
6.3.2. Grammar
6.3.3. Punctuation
6.3.4. Comprehension
6.4. Predictive
6.4.1. Capable of anticipating some later measure
6.5. Face
6.5.1. Related to the test overall appearance
7. Examination Score Quality
8. Both Concepts relate to the score not the test.
9. "Assessments must be both valid and reliable in order to give an accurate demonstration of student learning. Never give a test or other assessment without a specific educational objective in mind. Objectively evaluating your assessments for validity and reliability will reduce stress in the classroom and ensure that educational goals are met."
10. Answers questions relative to the stability and clarity of an examination
11. Specifically, a correlation ranging from 0= Completely Unreliable 1= Perfectly Reliable
11.1. Reliability is also a measure of error within an examination which includes: Poor wording, ambiguity, correct answer issues, and failure to link with objects.
12. Reliability, "Was the measure of student ability reached by accident through chance, or was it reached through a clear and stable and meaningful examination?
13. Reliability
13.1. Test- Retest or Stability
13.2. Altermate Form or Equivalence
13.3. Internal Consistency
13.3.1. Split-Half Method
13.3.2. Kuder-Richardson Methods