A test can fail in validity and still

• A. measure what it is supposed to measure.
• B. accurately determine IQ.
• C. be reliable.
• D. be a good test.

Answer: (C)

Verified step by step guidance

1. Understand the concept of 'validity' in psychological testing, which refers to the extent to which a test measures what it claims to measure.
2. Recognize that a test can be reliable without being valid. Reliability refers to the consistency of a test's results over time.
3. Consider that a test can consistently produce the same results (reliable) but still not measure the intended construct accurately (lack of validity).
4. Reflect on the idea that a test can fail in validity if it does not accurately measure the intended construct, yet it can still be reliable if it consistently produces the same results.
5. Conclude that for a test to be considered 'good,' it should ideally be both reliable and valid, but reliability alone does not ensure validity.