“…Although this paper strives to be comprehensive, many relevant topics in the study of individual change could not be included. Among these topics are models for change in binary variables (Plewis, 1981), the construction of test items and tests for use in the measurement of change (Saupe, 1966), and the scaling of test-item data using Item Response Theory methods (see Bock, 1976). Also, efficient design for the estimation of individual growth curves, that is, determination of the number and spacing of observations, is an important omission.…”