What term refers to the consistency of an assessment's data across repeated test administrations?

The term that refers to the consistency of an assessment's data across repeated test administrations is reliability. Reliability is an essential concept in educational assessments as it indicates the degree to which a test produces stable and consistent results over time. High reliability means that if a student takes the same test multiple times under similar conditions, the scores will be similar, suggesting that the test is measuring the intended construct without being influenced by unrelated factors.

In assessing students who are deaf or hard of hearing, maintaining reliability in testing is crucial to ensure that fluctuations in performance are due to the actual skills being measured rather than variations in the test itself or external conditions. This consistency is key in making informed decisions about educational placement, interventions, and program effectiveness.

The other terms, while related to assessment and educational measurement, do not specifically refer to the consistency of assessment data. Validity pertains to the accuracy of a test in measuring what it intends to measure, generalizability refers to the extent to which findings from a test can be applied to broader contexts or populations, and compensatory grading relates to the practice of balancing grades in a way that considers individual student challenges, rather than the consistency of data across administrations.