Interpersonal Therapy
The 60-Second Brief
What this theory actually believes about change. No origin stories — just the mechanism.
Change happens by improving the client's interpersonal relationships and social role — the mechanism is that mood symptoms (especially depression) are maintained by interpersonal dysfunction, and resolving the interpersonal problem lifts the mood. IPT doesn't dig for intrapsychic origins or restructure cognitions; it targets one of four problem areas (grief, role transition, role dispute, interpersonal deficits) and works the present relationships.
Evidence Base
What the research actually supports — and where it doesn't. Strongest indications, effect sizes, guideline status, limitations.
Evidence summary
Strong RCT evidence as a first-line treatment for major depression, comparable to CBT and medication, with established evidence for bipolar depression, bulimia, and perinatal depression. Recommended in multiple guidelines.
Best supported for
- major depression
- bulimia nervosa
- bipolar depression as an adjunct, perinatal depression
Evidence limitations
- Less evidence for personality pathology and severe disorders
- Effect sizes comparable, not superior, to CBT
Typical format
Individual; 12 to 16 weekly sessions; also a group format
Client Signals
The specific presentations where this orientation activates.
- Depression whose onset or maintenance tracks a relationship event — loss, transition, conflict
- Clients for whom CBT hasn't landed and whose distress is clearly relational
- Bipolar depression and bulimia (evidence bases beyond unipolar depression)
- Grief that has become complicated or stuck
- Life transitions triggering depressive episodes — retirement, new parenthood, divorce, leaving home
Client Mismatches
When this framework will actively backfire. Read this twice.
- Clients whose depression is clearly biologically driven and needs medical management first
- Clients who want to understand childhood origins — IPT stays in the present by design
- Severe personality pathology requiring more structural intervention — IPT is too focused and brief
Cultural & Normative Limitations
Where this orientation's frame assumes a specific context — the cultural and normative blind spots to watch for.
Built on Western relationship grammar — direct communication, named roles, the 'interpersonal deficit' construct — and may misread collectivist or family-based relating.
Pathologizing of Marginalized Identities
How this frame can misread BIPOC, disabled, queer/trans, and neurodivergent clients — the mechanisms of harm to watch for.
Role transitions and disputes are framed around conventional life events (marriage, parenthood, work) that may not map onto disabled, queer, or non-Western clients' life courses; BIPOC clients' grief over systemic role exclusion can read as 'interpersonal deficit,' and the dyadic emphasis can miss chosen family and community. Expand 'role' to the client's actual social world.
In-Session Moves
What to actually do. Micro-skills, not abstractions.
Name the problem area and stay in it
IPT defines one of four focal areas early — complicated grief, role transition, role dispute, or interpersonal deficits — and nearly every session returns to it. The focus is the engine; without it IPT drifts into supportive therapy. Name it explicitly with the client so you're both working the same problem.
Work the present, not the past
IPT is deliberately here-and-now. When the client reaches for childhood, gently redirect to current relationships: 'That shaped you — and the place we can change it is in what's happening now.' The past is context, not the work site.
Use the therapeutic relationship as a rehearsal
The therapy relationship is a live interpersonal lab. Notice and use what's happening between you — it's both data about the client's relational patterns and a place to try new interpersonal behavior safely.
Link mood to interpersonal events explicitly
Make the connection the client can't yet see: 'You started feeling worse right around when the conflict with your sister restarted.' Helping the client see that symptoms track interpersonal events is itself the model — and gives the work concrete targets.
Question Bank
Organized by session phase. Tagged by orientation.
- What's been happening in your close relationships since we last met?
- Who are the most important people in your life right now, and how is each one going?
- What changes — losses, transitions, conflicts — led up to you feeling this way?
- When your mood started to shift, was there something happening with a particular person that came just before it?
- How are you feeling about the relationships we identified as central to your treatment — have any of them moved, for better or worse?
- Is there a relationship in your life right now that feels like it is holding you up, and one that feels like it is pulling you down?
- How did you handle that interaction, and how would you like to handle it next time?
- What would you want to say to them that you haven't been able to?
- What role are you in right now, and how has that role changed?
- What did you need from that person in that moment, and how close did you come to asking for it directly?
- How is the version of yourself you are in that relationship different from the version you want to be?
- If that relationship were resolved — the conflict settled, the loss mourned, the transition made — how do you imagine your mood would be different?
- What's one relationship we should focus on this week?
- What's one small interaction you'd like to try differently before we meet again?
- What is one thing you could communicate to someone important to you this week that you have been leaving unsaid?
- As we move closer to ending our work together, which relationship in your life feels most ready to carry you forward?
- How will you notice this week whether your mood and your interactions with the people around you are connected?
Stuckness Pivots
What to do when your go-to isn't working.
Client keeps returning to childhood despite the present focus
Don't forbid it — briefly honor the origin, then bridge: 'That's clearly important, and it explains a lot. Where it's affecting you right now is in X — let's work there, where we can actually change something.' Reframe the past as the source of the pattern and the present as the only place it can shift.
No clear focal area emerges
Pause the content work and make formulation the task. Review the timeline of symptoms against relationship events. If no area fits, the issue may be that you're working with interpersonal deficits (the hardest, vaguest area) — name that explicitly and build social skills and connection gradually rather than chasing a discrete event that isn't there.
Integration Map
Which orientations play well together — and which ones fight.
Pairs well with
- CBT (IPT for the relational dimension, CBT for the cognitive)
- Medication management (IPT + antidepressants is a classic combination)
- Supportive therapy for the medical-illness context
Conflicts with
- Psychodynamic depth work — IPT deliberately avoids transference interpretation and origin exploration; mixing them muddies the focus
- Solo CBT that ignores the interpersonal context — treating depression as thoughts-only when it's clearly relationship-driven
Blending notes
IPT is focal and time-limited by design; blending with open-ended exploratory work undermines its mechanism. The cleanest blend is IPT + medication, or IPT handling the relational layer while CBT handles the cognitive one — but pick a primary frame per episode so the client knows what they're working on.
Client Match Tags
Tags that power the Client Match tool. Fit = this orientation tends to engage; Contraindication = proceed with caution.
Fits well
- depression
- grief
- life transition
- relationship conflict
- role change
- interpersonal deficits
- bulimia
- bipolar depression
- Isolation
- fatherhood / fathering
- intimacy avoidance
- postpartum
- motherhood / mothering
- reproductive concerns
- body image / body shame
- late life / aging
- Acute severe depression
Contraindications
- severe personality pathology
- acute psychosis
- primary cognitive disorder
Related Skills
Micro-skills tagged to this orientation — the moves in your hands, broken out individually.
Termination & Endings
How this orientation frames a good ending — readiness, structure, and what to process.
Termination is itself an interpersonal event — process the ending of the relationship as part of the work; review the focus area's change and the client's capacity to sustain it.
Rupture & Repair
How this orientation handles alliance ruptures — spotting, naming, and repairing them.
The rupture IS the work — it's an interpersonal pattern enacted in the room. Use it to understand and shift the focus area rather than smoothing it over.