This study examined the effects of the age, gender, education, and counseling experience of Korean supervisees on their self-and-other awareness, motivation, and autonomy: the three structures of the Integrated Developmental Model of supervision (Stoltenberg & Delworth, 1987). All three structures of the IDM had positive relationships with age, education, and counseling experience but the effects of education on motivation were not statistically significant. Gender had no effect on the relationships between the three structures of the IDM and age, education, or counseling experience. The results provide additional support for the IDM for ethnic Korean supervisees and suggest the potential applicability of the IDM to Korean supervisees. (Contains 1 table.)