Group therapy is a structured clinical format where a trained therapist leads sessions with multiple clients at the same time. Research shows it can be effective for depression, anxiety, grief, and substance use disorders, among many other conditions, depending on the treatment model and individual needs. Most outpatient groups include about five to fifteen members, meet weekly, and last 60 to 90 minutes, although formats vary.
If you’re studying psychology, group therapy will show up in your coursework, your clinical training, and eventually your caseload. It’s one of the most widely used treatment modalities in mental health practice, and understanding why it works matters as much as knowing how to run a session.
What Is Group Therapy?
Group therapy is a form of psychotherapy where one or two trained mental health clinicians (often licensed therapists) lead a session with multiple clients simultaneously. It’s distinct from peer-led support groups or self-help meetings because it is led by a trained therapist and has clinical treatment goals. The therapist structures the session, manages group dynamics, and intervenes clinically when needed.
Groups typically focus on a shared concern: depression, anxiety, grief, trauma, substance use, or a specific life transition. Most outpatient groups have five to fifteen members, though the size depends on the treatment setting and therapeutic approach.
The therapeutic frameworks that guide group work vary. Cognitive-behavioral groups focus on restructuring distorted thinking patterns. Psychoeducational groups teach skills, like emotion regulation or relapse prevention. Process-oriented groups pay attention to what’s happening between members in real time, using interpersonal dynamics as the clinical material itself. Irvin Yalom’s model of group therapy, one of the most influential in the field, identifies eleven therapeutic factors believed to contribute to therapeutic change in groups, ranging from instillation of hope to interpersonal learning.
What Is a Major Advantage of Group Therapy?
The most significant clinical advantage of group therapy is that the group itself becomes the treatment. In individual therapy, the therapist is the primary agent of change. In group work, the other members are too.
Clients hear how their behavior lands with real people, not just a clinician who’s professionally obligated to be nonjudgmental. They observe others working through problems similar to their own and see that recovery is possible. They practice social skills in a real-time setting with built-in corrective feedback. For clients whose core struggles involve relationships, isolation, or shame, that peer dimension offers therapeutic experiences that individual therapy cannot provide in the same way.
Cost is also a practical advantage. Group sessions are often billed at a lower rate than individual therapy, although costs vary by provider and insurance.
How Does Group Therapy Differ From Individual Therapy?
Individual therapy focuses the entire clinical hour on one client’s needs, with the therapist directing interventions based on that person’s history, goals, and presentation. The relationship is dyadic, and the work is private.
Group therapy distributes the therapeutic work across the group. The therapist facilitates rather than directs in the same way. Members give and receive feedback, share time, and learn as much from observing others as from direct intervention. The group structure introduces variables that individual therapy doesn’t have: cohesion, conflict, silence, and the reactions of other members all become clinical material.
That difference is the point. Some clients may make faster progress in groups precisely because the interpersonal setting exposes patterns that don’t surface in a one-on-one context. A client who intellectualizes everything in individual therapy may find it harder to do that when five other people are responding to them in real time.
What Is the Purpose of Group Therapy in Clinical Practice?
Group therapy serves several distinct clinical purposes depending on the treatment setting. In community mental health, groups can enable clinicians to serve more clients and expand access to care, which matters when waitlists are long and individual therapy slots are limited. In inpatient and partial hospitalization programs, daily or twice-weekly group sessions structure the treatment day and address acute symptoms across the whole unit at once.
For clients with personality disorders, social anxiety, or chronic interpersonal difficulties, group therapy may be more than a cost-effective alternative to individual work. It may be the more clinically appropriate format. Standard comprehensive DBT, one of the most evidence-based treatments for borderline personality disorder, includes group skills training as one of its core treatment components alongside individual therapy.
For psychology students, understanding group modalities also shapes how you think about your training. Practicum and internship placements often include group facilitation, and competency in group work is expected in many licensure pathways, particularly for those pursuing careers in community mental health, substance use treatment, or hospital-based settings.
If group therapy is a modality you want to practice, your graduate program matters. Find accredited psychology and counseling programs by state below.