The basic tenet of the Person-Environment (P*E) Congruence model posits that well-being, as one index of adjustment, is dependent on the degree of fit between the perceived environment and the preferred environment. While the literature is clear regarding the relationship of P*E Congruence and well-being, one theoretical issue that needs to be addressed is the extent to which Person and/or Environment measures alone and in concert with P*E Congruence are predictive of well-being. This study examined the relationship of two Person measures and the P*E Congruence measure with well-being. Subjects (N=88) were males between the ages of 27 and 76 who were patients in a Veterans Administration domiciliary. Subjects were interviewed and completed a variety of questionnaires. Results showed that overall well-being was significantly predicted by the interactive P*E Congruence dimensions and by the separate Person scales assessing functional status (OARS) and personality (NEO) and that of the three, the NEO was the strongest predictor of psychological well-being. The combination of the three sets of predictor variables resulted in a higher level of prediction than any of the three scales alone. The important point from these data is that there are common themes among the disparate Person and P*E Congruence variables predicting well-being, and there are concrete activities that can be used to positively impact well-being, and hence the quality of life, experienced by the patients in the domiciliary. (ABL)