If a test gives the same results when it is repeated, it is said to have ______.

Correct answer: Reliability. Reliability means consistency: a reliable test gives similar results when repeated under similar conditions.

• Clients: Clients are people receiving a service and are not a test quality.
• Trials: Trials are attempts or tests and are not a test quality.
• None of these: “None of these” is incorrect because reliability is correct.