Which method is least likely to improve the validity of a test?

• A. Conducting a pilot test with a small sample
• B. Using biased questions to reduce variability
• C. Consulting subject matter experts
• D. Implementing thorough item analysis

Answer: (B)

Using biased questions to reduce variability is least likely to improve the validity of a test because validity refers to the extent to which a test measures what it claims to measure. Biased questions can introduce distortion in the measurement, impacting the accuracy and fairness of the results. Rather than creating a more valid assessment, biased questions can lead to invalid conclusions, as they may not reflect the true competencies or knowledge of all test-takers.

On the other hand, conducting a pilot test with a small sample can help in identifying issues with test items and assessing their effectiveness before the test is administered more widely. Consulting subject matter experts ensures that the content of the test aligns with current standards and best practices, enhancing its relevance and applicability. Implementing thorough item analysis allows for evaluating how each question performs statistically, which can lead to revisions that improve both the reliability and validity of the test. Thus, all these methods contribute positively to the validity of a test, in contrast to using biased questions.