Which term means the consistency of a test's results across repeated measurements under the same conditions?

Which term means the consistency of a test's results across repeated measurements under the same conditions?

• A. Validity
• B. Reliability
• C. Accuracy
• D. Neutrality

Answer: (B)

Reliability is about consistency. If you repeat a test under the same conditions and obtain similar results each time, the measurement is reliable. This reflects the test’s repeatability and how little random error affects the scores. Think of ways reliability is checked: test-retest reliability looks at results across two or more occasions; inter-rater reliability checks that different assessors score similarly; internal consistency examines whether the items on a test coherently measure the same thing. This is different from validity, which asks whether the test actually measures the intended attribute. Accuracy is about how close measurements are to the true value, and neutrality isn’t the standard term used for consistency in tests. The key idea here is that consistency across repeated measurements under the same conditions defines reliability.

Reliability is about consistency. If you repeat a test under the same conditions and obtain similar results each time, the measurement is reliable. This reflects the test’s repeatability and how little random error affects the scores.

Think of ways reliability is checked: test-retest reliability looks at results across two or more occasions; inter-rater reliability checks that different assessors score similarly; internal consistency examines whether the items on a test coherently measure the same thing.

This is different from validity, which asks whether the test actually measures the intended attribute. Accuracy is about how close measurements are to the true value, and neutrality isn’t the standard term used for consistency in tests. The key idea here is that consistency across repeated measurements under the same conditions defines reliability.