THE DISCUSSION ON REPEATED MEASUREMENT OF ONE CONTINUOUS VARIABLE FOCUSES ON THE IDENTIFICATION OF RESTRICTIONS AND VARIANCES. TWO WAYS OF DEVELOPING MEASUREMENT MODELS FOR DICHOTOMOUS ATTRIBUTES ARE EXAMINED: (1) TREAT VARIABLES AS NUMBER VALUED (BINARY OR 'DUMMY') AND (2) DEFINE CONDITIONAL PROBABILITIES OF RESPONSE UNCERTAINTY AND CHANGE UNDER VARIOUS CONDITIONS, LEADING TO A STYLE OF ANALYSIS THAT IS COMPARABLE TO MARKOV CHAIN ANALYSIS. WAYS OF RESTRICTING GENERAL MEASUREMENT MODELS INVOLVING DICHOTOMOUS ATTRIBUTES ARE CONSIDERED, ALONG WITH BINARY VARIABLE ANALYSIS AND POLYTOMOUS QUALITATIVE VARIABLES. APPLICATIONS OF MODELS RELATING LATENT AND MANIFEST VARIABLES ARE DISCUSSED. SUPPORTING EQUATIONS ARE GIVEN. (DEP)