ผลของการฝึกการแสดงออกที่เหมาะสมแบบกลุ่มตามแนวของเลนจ์ และจาคูโบว์สกี้ที่มีต่อพฤติกรรมความสัมพันธ์ระหว่างบุคคลของหัวหน้างาน / เทพ สงวนกิตติพันธุ์ = Effects of group assertion training according to Lange and Jakubowski's approach on interpersonal relationship behavior of supervisors / Thep Sanguankittiphan
The purpose of this research was to study the effects of group assertion training according to Lange and Jakubowski’s approach on interpersonal relationship behavior of supervisors. The sample included 16 volunteer supervisors at R.M. Group Company Limited. The subjects were randomly assigned to an experimental group and a control group, each group comprising 8 supervisors. The experimental group participated in seven sessions of group assertion training conducted by the researcher for two hours, once a week. Interpersonal Relationship Behavior was assessed by a modified version of FIRO-B by Schutz, and a Assertive Behavior Questionnaire constructed by the researcher. The pretest-posttest control group design was used. T-test was utilized for data analysis at the .05 level of significance. Results show that supervisors who participated in the group assertion training according to Lange and Jakubowski’s approach significantly increased their interpersonal relationship behavior in the dimensions of Expressed Inclusion, Wanted Inclusion, Expressed Affection, and Wanted Affection, but significantly decreased their interpersonal relationship behavior in the dimension of Wanted Control. There was no significant decrease in the dimension of Expressed Control.