Interpersonal processes in psychodynamic-interpersonal and cognitive behavioral group therapy: a systematic case...

Area of Science:

• Psychology
• Psychotherapy Research

Background:

• Binge eating disorder (BED) is a significant mental health concern.
• Group therapy is a common treatment modality for BED.
• Understanding interpersonal dynamics within group therapy is crucial for treatment efficacy.

Purpose of the Study:

• To compare interpersonal processes in Group Psychodynamic-Interpersonal Psychotherapy (GPIP) and Group Cognitive Behavioral Therapy (GCBT) for BED patients.
• To apply an interpersonal stage model of psychotherapy to group therapy for the first time.
• To identify therapist behaviors that optimize therapeutic interactions at different stages of group therapy.

Main Methods:

• A mixed-method systematic case study design was employed.
• Analyzed transcribed video recordings of therapist-patient interactions using the Structural Analysis of Social Behavior (SASB).
• Qualitative transcript analysis provided contextual understanding for quantitative findings.

Main Results:

• Patients in both GPIP and GCBT groups showed positive outcomes for binge eating and depression.
• GPIP therapists were more autonomy-giving, while GCBT therapists were more directive.
• The GPIP group exhibited higher overall interpersonal complementarity than the GCBT group.

Conclusions:

• Both GPIP and GCBT are effective treatments for BED.
• Interpersonal complementarity varied across therapy stages, with GPIP showing higher levels.
• Specific therapist behaviors can be tailored to enhance therapeutic interactions within each modality at different stages of group therapy.