Match these reliability coefficients with what is measured. Drag and drop application. Stability Stability drop zone empty. Equivalence Equivalence drop zone empty. Internal consistency Internal consistency drop zone empty. Degree to which alternative forms of the same measure produce same or similar results; administered simultaneously or with a delay. Interrater estimates of the similarity of judges' observations or scores. Degree to which instrument items are homogeneous and reflect the same underlying construct(s). Reliability of a test or instrument inferred from examinee scores; same test is administered twice to same subjects over an interval of less than six months