Validity and Reliability
by Michele Stephens
1. Reliability
2. This is when the stability of test scores has been repeated,based on the trait not changing.
3. 1.Very easy test
3.1. 2.very difficult test.
4. A valid test measures what it is suppose to measure.
4.1. 2 types of validity
4.1.1. Content validity-comparing with instructional objects.
4.1.2. Criterion-related validity is by correlating test scores.