What term describes consistent scores obtained by an individual when re-tested with the same test on different occasions?

The term that best describes consistent scores obtained by an individual when re-tested with the same test on different occasions is reliability. Reliability refers to the degree to which an assessment tool produces stable and consistent results over multiple administrations.

In the context of psychological testing, reliability is crucial because it ensures that the scores reflect true performance levels rather than fluctuations due to random error or variability in test conditions. A reliable test yields similar results for the same individual over time if no significant changes have occurred in the person's abilities or conditions being assessed.

While validity is a critical concept in testing, it specifically refers to how well a test measures what it claims to measure, rather than the consistency of scores over time. Consistency can describe a general sense of stability but does not specifically define the statistical term used in psychometrics. Standardization refers to the process of developing and administering tests in a consistent manner, ensuring that procedures and scoring are the same for all individuals. However, it does not directly address the reliability of scores over time. Thus, reliability is the most accurate and relevant term in this context.