The purpose of this study was to examine the effect of Choice Theory focus group work on housewives’
internal․external control, interpersonal relationships and subjective happiness. To achieve this goal, the book
‘Warning: Psychiatry can be hazardous to your mental health’(Glasser, 2003/2009) was utilized to conduct a Choice
Theory focus group work, which was led by the researcher, and supervised by a Reality Therapy basic practicum
supervisor. Twenty four housewives in K city, South Korea participated in the study. In order to examine the
effectiveness of the Choice Theory focus group, participants were randomly assigned into an experimental or a
control group consisting of 12 members each. The experimental group took part in 2 hour weekly sessions of the
group work, a total of 8 sessions. The instruments used were the Internal․External Control Scale, Interpersonal
Behavior Habit Scale and Subjective Happiness Scale. Participants were measured two times, with a pretest and
post-test. The data collected were analyzed using an ANCOVA of the SPSS 21.0. Also each participant of the
experimental group was asked to disclose her experience during each group work and after the whole group work
for qualitative data of the study. The results of the study were as follows. First, the Choice Theory focus group
increased the internal control and decreased external control of the participants. Second, the Choice Theory focus
group increased connecting behavioral habits and decreased disconnecting behavioral habits. Third, the Choice
Theory focus group increased the subjective happiness of the participants. The results of the study implied that
Choice Theory focus group could be effective in improving the internal control psychology toward life,
interpersonally connecting behaviors, and subjective happiness while being effective in decreasing the external
control psychology toward life and interpersonally disconnecting behaviors of housewives in Korea.