Following are statements related to qualities of a test; (1) The extent the test measures what the test maker intends to measure, (2) The extent a test is consistent from one measurement to other
Following are statements related to qualities of a test; (1) The extent the test measures what the test maker intends to measure, (2) The extent a test is consistent from one measurement to other Correct Answer (1) is Validity and (2) is Reliability
Important Points
Validity of a test:
- Test validity refers to the degree to which the test actually measures what it claims to measure.
- Test validity is also the extent to which inferences, conclusions, and decisions made on the basis of test scores are appropriate and meaningful.
- The 2000 and 2008 studies present evidence that Ohio's mandated accountability tests is not valid, that the conclusions and decisions that are made on the basis of OPT performance are not based upon what the test claims to be measuring.
Reliability of a test:
- Test reliability refers to the degree to which a test is consistent and stable in measuring what it is intended to measure.
- Most simply put, a test is reliable if it is consistent within itself and across time.
- To understand the basics of test reliability, think of a bathroom scale that gave you drastically different readings every time you stepped on it regardless of whether you had gained or lost weight.
- If such a scale existed, it would be considered not reliable.
Hence, (1) is Validity and (2) is Reliability
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Feb 20, 2025