Serat has developed a new test. He gives the test to 1,000 people. Six weeks later he gives the test to the same 1,000 people. Serat is assessing the______of his test.
Correct answer: B. test-retest reliability
- A. split-half reliability
- B. test-retest reliability
- C. alternate form reliability
- D. criterion validity
Explanation
Giving the same test to the same people twice and correlating their scores measures test-retest reliability, or score stability over time. Split-half and alternate-form reliability instead divide or vary the test itself.
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