Integrative behavioural couple therapy

1. Introduction

Version followed: IBCT as set out in Christensen, Doss & Jacobson (2020), Integrative Behavioral Couple Therapy: A Therapist's Guide to Creating Acceptance and Change (2nd ed., Norton), the current therapist manual, together with the standard protocol published by the UCLA IBCT site. The book's structure is taken from the developers' site, the developers' training pages and published summaries. Older concepts from the first manual (Jacobson & Christensen, 1996/1998, Acceptance and Change in Couple Therapy) are named where used. [source: UCLA IBCT about; UCLA IBCT resources; Guetz 2020 review; Barraca 2015] [uncertain: the 2020 manual text]

Integrative Behavioral Couple Therapy (IBCT) was developed by Andrew Christensen (UCLA) and the late Neil S. Jacobson (University of Washington). It is a behavioural couple therapy that keeps the change techniques of traditional behavioural couple therapy (TBCT: behaviour exchange, communication training, problem-solving training) and adds acceptance strategies as core components. [source: Roddy et al. 2016 abstract; Jacobson et al. 2000; Barraca 2015]

How change happens. Distress comes from real differences and emotional sensitivities between partners, made worse by external stressors and a self-perpetuating pattern of interaction. The four together are known as DEEP. [source: OurRelationship IBCT training; Aarhus University IBCT page; Kalai 2016] The authors say the aim is not only change but emotional acceptance. Partners stop the struggle to change each other and come to see the other's difficult behaviour as understandable, so problems that cannot be solved become a route to closeness rather than a fight. [source: Barraca 2015; Jacobson et al. 2000] Acceptance is expected to produce change indirectly, sometimes more efficiently than direct change efforts. Change is meant to be "contingency-shaped", produced by new natural consequences experienced in session, rather than "rule-governed", produced by following taught rules. [source: Jacobson et al. 2000; Perissutti & Barraca 2013; Guetz 2020 review] The developers' research summary says IBCT works through improvements in emotional acceptance, behaviour change and communication. [source: Roddy et al. 2016 abstract]

2. Framework

[source: UCLA IBCT about; Barraca 2015; McGinn 2012; Jacobson et al. 2000; Aarhus University IBCT page; Wikipedia, citing Jacobson & Christensen 1996]

Format. Conjoint couple therapy, except for two individual assessment sessions. Sessions are weekly and just under an hour, later spaced every other week or further apart. The standard protocol is 4 assessment/feedback sessions plus 20 to 22 active treatment sessions, about 26 in all, over roughly 6 to 12 months. In the trials, couples had at most 26 sessions, with an IBCT mean of about 21 to 23.5 and a median duration of 36 weeks. [source: UCLA IBCT about; Jacobson et al. 2000; McGinn 2012]

Phase 1: Evaluation (sessions 1 to 3)

Session 1 (joint): find out what brings the couple in, take a brief relationship history, and build engagement. Hand out questionnaires to complete before the individual sessions. Suggest the couple read Reconcilable Differences (Christensen, Doss & Jacobson, 2014, 2nd ed.). [source: UCLA IBCT about; Barraca 2015]
Sessions 2 and 3 (individual, one per partner): cover the current problem and situation, family-of-origin history, relationship history and present level of commitment. [source: Barraca 2015]
Goal: gather enough to build a DEEP formulation of one or two core issues and a treatment plan. [source: Aarhus University IBCT page]
Questionnaires named in published summaries: the Dyadic Adjustment Scale (DAS), the Frequency and Acceptability of Partner Behavior Inventory (FAPBI, Christensen & Jacobson 1997; Doss & Christensen 2006) and the Marital Satisfaction Inventory (MSI). The manual's own intake questionnaires and any weekly session questionnaire are not drawn on here [uncertain]. [source: Barraca 2015] [uncertain]
Move on when both partners have been seen individually and you can state the DEEP formulation. [synthesis]

Phase 2: Feedback (session 4, joint)

Present the formulation in plain language: the main theme or themes, the understandable reasons the partners struggle, and why their efforts to fix things often fail. Also name the couple's strengths. The couple reacts, adds information and corrects you. Then explain the treatment and set goals. [source: UCLA IBCT about; Barraca 2015]
The couple then decides whether to continue with this therapist and this approach. [source: UCLA IBCT about] The developers' Aarhus page describes this as securing commitment to active treatment. [source: Aarhus University IBCT page]
A fifth session commonly introduces the treatment. [source: McGinn 2012, describing the trial protocol] [uncertain: content not detailed]

Phase 3: Active treatment (about 20 to 22 sessions, joint)

Sessions focus on recent positive or negative incidents that reflect the core themes, on upcoming events and decisions linked to them, and on broader theme-related issues. [source: UCLA IBCT about; Barraca 2015]
Interventions are chosen from the formulation. Acceptance-oriented work targets Differences, Emotional sensitivities and unchangeable External stressors. Change-oriented work targets the Pattern of communication and External stressors that can be changed. [source: Aarhus University IBCT page]
There is no fixed order. In the trials, IBCT usually started with acceptance work and added change techniques as needed. The formulation, and the couple's state and needs, decide whether to begin with acceptance, tolerance or change. [source: Jacobson et al. 2000; Barraca 2015] Tolerance work is used where acceptance is not achievable. [source: Barraca 2015]

Phase 4: Termination

Space sessions further apart until the couple can manage on their own. [source: UCLA IBCT about; Aarhus University IBCT page]
In a final session, review the DEEP analysis and the couple's progress, and plan how to handle setbacks. [source: Aarhus University IBCT page]
Criteria for ending: incidents linked to the theme are being handled with less escalation and more understanding between sessions, and the couple can explain their own DEEP pattern. [synthesis]

Who may deliver it. IBCT is not a licensed programme with a franchise or site licence. The developers offer a hybrid IBCT Level 1 training: 12 hours of recorded lessons, four 2-hour live sessions with role-plays, and a final test, worth 20 APA CE credits. [source: OurRelationship IBCT training page] A review of the 2020 manual reports that certification as an IBCT therapist involves extensive observation of actual sessions by a trainer, and that the book is not meant to replace training and supervision. [source: Guetz 2020 review] The US Department of Veterans Affairs chose IBCT for nationwide training and dissemination. [source: Roddy et al. 2016 abstract] Exact certification steps (number of taped cases, consultation hours) were not found. [uncertain] In the trials, therapists had a didactic workshop, read the manuals, had weekly supervision with tape review, and were rated for adherence on 8 change items and 9 acceptance items. [source: Jacobson et al. 2000]

Suitability. The trials excluded couples with moderate-to-severe domestic violence in the past year, current alcohol dependence, concurrent psychotherapy or psychotropic medication, or sexual dysfunction as the only complaint. Treat these as reasons for extra caution, not as manual-stated contraindications. [source: Jacobson et al. 2000] [uncertain: the 2020 manual has case chapters on violence, sexual problems, infidelity and psychopathology (Guetz 2020 review), but their protocols are not drawn on]

3. Guiding principles

Acceptance plus change. Combine helping partners accept what cannot or need not change with helping them change what can. In practice: for each complaint, ask whether this is a difference to understand or a behaviour to negotiate. [source: Jacobson et al. 2000; Barraca 2015]
Acceptance is not resignation. It means letting go of the struggle to change the partner and using the problem as a route to intimacy. In practice: never ask a partner to put up with harm. Present acceptance as relief from a losing battle. [source: Barraca 2015]
Acceptance drives change. In practice: when a partner feels understood rather than attacked, the other often changes on their own, so do not rush to behavioural contracts. [source: Jacobson et al. 2000; Kalai 2016]
Contingency-shaped, not rule-governed. In practice: create real emotional experiences in session (a softer disclosure followed by a warmer response) rather than teaching rules to follow. Use your clinical judgement rather than a script. [source: Perissutti & Barraca 2013; Guetz 2020 review; Porche, ACBS slides]
Focus on the recipient. In practice: work on how the receiving partner experiences and responds to a behaviour, not only on getting the other partner to stop it. [source: Perissutti & Barraca 2013]
Formulation-driven. In practice: link every incident discussed back to the DEEP pattern and themes. If an intervention does not connect to the formulation, question it. [source: Aarhus University IBCT page; McGinn 2012; Barraca 2015]
Differences are normal and mutually created. In practice: describe incompatibilities as natural results of two histories and temperaments, never as one partner's defect. [source: Kalai 2016]
Do not predetermine what must change. Do not decide in advance which behaviours should change and which should be accepted, but keep logical and ethical limits: abuse and harassment are never targets for acceptance. [source: Barraca 2015]
Active, balanced therapist. In practice: be directive in session, distribute validation evenly, and link past history to present daily difficulties. [source: Barraca 2015; McGinn 2012]
Validate both truths. In practice: find the understandable core in each partner's experience, even when their accounts conflict. [source: McGinn 2012]
Soft over hard emotion. In practice: draw out hurt, sadness, fear, disappointment and shame that lie under anger, criticism and contempt. [source: McGinn 2012; Cordova, Jacobson & Christensen 1998 abstract]
The listener's response matters. Intimacy depends on whether the listening partner responds to a disclosure in a reinforcing way. In practice: after a vulnerable disclosure, always turn to the other partner for their response. [source: McGinn 2012, citing Cordova & Scott 2001]
Work with emotionally live incidents. In practice: build sessions around specific recent or upcoming events rather than abstract complaints. [source: UCLA IBCT about; Barraca 2015]
Shape communication indirectly as well as directly. In practice: help the speaker turn a complaint about the partner into a fuller, more revealing statement about themselves. [source: Porche, ACBS slides]
Collaborative stance. In practice: offer the formulation as a hypothesis for the couple to correct, and let them decide whether to proceed. [source: UCLA IBCT about]
Empathy, curiosity, non-judgement, including about culture. In practice: include cultural differences explicitly in the DEEP analysis. [source: Kalai 2016]

4. Intervention inventory

The inventory has five parts: (A) assessment and formulation, (B) acceptance, (C) tolerance, (D) deliberate change, and (E) session-level and closing procedures. Example language is my own illustrative wording unless it is quoted and cited.

A1. Initial joint session

Purpose: Engage both partners, hear the presenting concerns, take a brief relationship history, and set up the evaluation. [source: UCLA IBCT about; Barraca 2015]
Steps:
1. Explain the format: one joint session, one individual session each, then a joint feedback session, after which the couple decides whether to go on.
2. Ask each partner in turn what brings them in, and keep the time balanced.
3. Take a short history: how they met, what attracted them, and when problems started.
4. Ask about the couple's strengths as well as their problems.
5. Give questionnaires to complete before the individual sessions. Use a validated satisfaction measure such as the DAS or MSI and a partner-behaviour measure such as the FAPBI where available.
6. Suggest Reconcilable Differences as reading during therapy. [source: UCLA IBCT about; Barraca 2015] [synthesis: the order of steps 2 to 4]
Example language (illustrative): "Today I'd like to hear from each of you what's been hard, and also what drew you together. Next I'll meet each of you on your own once, and then we'll meet together and I'll share how I understand what's going on."
Watch for: One partner dominating. Escalation starting in the first session: interrupt it (see E2). Signs of fear of the partner, which you follow up in the individual session. [synthesis]

A2. Individual assessment sessions

Purpose: Explore each partner's concerns, personal history, family of origin, relationship history and commitment in private. [source: UCLA IBCT about; Barraca 2015]
Steps:
1. Review the questionnaires.
2. Explore the current problems from this partner's point of view, including specific recent examples.
3. Take a family-of-origin and personal history, looking for roots of emotional sensitivities (the first E in DEEP).
4. Take a relationship history.
5. Assess present commitment to the relationship.
6. Screen privately for physical violence, coercion and fear of the partner, and for individual problems such as substance misuse or depression. [synthesis: research trials screened for violence and alcohol dependence (Jacobson et al. 2000), but the manual's screening procedure is not drawn on]
7. Clarify your policy on secrets (for example an ongoing affair) before the partner discloses. [synthesis] [uncertain: the manual's confidentiality policy]
Example language (illustrative): "When she goes quiet like that, what goes on inside you? Is there anything from earlier in your life that feels like this?"
Watch for: Disclosures of violence or an ongoing affair that change whether conjoint IBCT can go ahead (see section 5).

A3. DEEP analysis and formulation

Purpose: Build a shared, non-blaming account of the couple's core problem that guides every later intervention. [source: Aarhus University IBCT page; OurRelationship IBCT training; Kalai 2016]
Steps:
1. Differences: List real incompatibilities, for example in need for closeness or independence, social needs, sexual interest, beliefs, parenting styles or culture.
2. Emotional sensitivities: Name each partner's vulnerabilities, such as fear of abandonment or being controlled, rooted in their history, trauma or culture.
3. External stressors: Note outside pressures such as children, money, illness and extended family, and mark which can be changed.
4. Pattern of interaction: Describe the sequence by which the partners move away from or against each other, for example one criticises and escalates while the other withdraws.
5. Reduce the analysis to one or two core issues. [source: Aarhus University IBCT page]
6. Older-manual vocabulary that you may still use: a theme (a category of conflict behaviours that serve similar functions), the polarization process (the interaction pattern set off when conflict around the theme arises, which pushes partners further apart), and the mutual trap (both feel stuck and hopeless). [source: Barraca 2015, describing Jacobson & Christensen 1998] [source for steps 1 to 4: Kalai 2016; Aarhus University IBCT page]
Watch for: A formulation that quietly blames one partner. Check that each partner's behaviour is shown to make sense given their history and sensitivities. [source: Kalai 2016; McGinn 2012]

A4. Feedback session

Purpose: Share the formulation, check it with the couple, explain the treatment and secure an informed decision to continue. [source: UCLA IBCT about; Barraca 2015; Aarhus University IBCT page]
Steps:
1. Describe the couple's strengths.
2. Present the DEEP formulation in everyday language, as a hypothesis.
3. Explain why their reasonable attempts to fix things keep failing (the pattern).
4. Invite reactions, additions and corrections, and revise the formulation live.
5. Describe active treatment: joint weekly sessions, a focus on real incidents, and work on both acceptance and change.
6. Agree goals, then ask whether they want to proceed with you and this approach. [source: UCLA IBCT about; Barraca 2015]
Example language (illustrative): "It seems to me you two differ in how much closeness you need. That's normal, not a flaw in either of you. When Sam pulls back to get space, Alex feels the old fear of being left and pushes harder, and the harder Alex pushes, the more Sam withdraws. Does that fit? What would you change?"
Watch for: Both partners recognising themselves. A partner who says "so it's my fault" means the framing needs more balance. [synthesis]

A5. Introduction to treatment (often session 5)

Purpose: Begin active treatment from the formulation. [source: McGinn 2012]
Steps: Restate the core theme. Explain that each week you will pick a recent or upcoming incident linked to it. Agree how the couple will bring incidents, for example each noting the most significant positive and negative interaction of the week. [synthesis] [uncertain: the manual's session-5 content and weekly questionnaire]

B1. Empathic joining

Purpose: Build acceptance by helping each partner express the pain behind their complaints without accusation, so the other can respond with compassion. Use it when incidents are driven by emotional sensitivities and hard, blaming emotion. [source: Barraca 2015; Perissutti & Barraca 2013; Guetz 2020 review; McGinn 2012]
Steps:
1. Choose an emotionally salient recent incident linked to the theme. [source: UCLA IBCT about]
2. Ask the speaker for their experience, shifting them from describing the partner's actions to describing their own reactions and feelings. [source: Guetz 2020 review; Porche, ACBS slides]
3. Validate: summarise, add meaning, and reformulate hard reactions as understandable. [source: McGinn 2012]
4. Listen empathically and voice the soft emotions (hurt, sadness, fear, disappointment, shame) that lie under the hard ones (anger, irritation, criticism, contempt). Suggest or encourage soft expression. [source: McGinn 2012; Guetz 2020 review]
5. Link the reaction to the person's history and to the DEEP formulation, so the behaviour is seen as part of the couple's differences. [source: Barraca 2015; McGinn 2012]
6. Keep attention on what is being felt now in the room. [source: McGinn 2012]
7. Turn to the listening partner and ask for their reaction. This is essential, because intimacy depends on a reinforcing response. [source: McGinn 2012]
8. Repeat the process for the other partner.
Example language: "You're angry but you're also hurting about it too." (therapist speech coded in IBCT trial sessions; source: McGinn 2012). Illustrative: "When the phone was out at dinner, under the irritation, what was the hurt? ... Sam, what's it like to hear that it felt lonely rather than just annoying?"
Watch for: Softer emotion drawing a softer response from the listener. [source: Porche, ACBS slides] Over the course of therapy, rising non-blaming descriptions and soft emotion and falling hard emotion, which in the trial went with rising satisfaction. [source: Cordova, Jacobson & Christensen 1998 abstract] Warning signs: the listener dismisses or attacks a soft disclosure. Then block it, validate the listener's own hurt, and return to the speaker later. [synthesis]

B2. Unified detachment

Purpose: Reduce negative affect by helping partners step back and describe their pattern together, without judgement, as an "it" they face jointly. The 2020 manual is reported to describe this as a kind of dyadic mindfulness. [source: Barraca 2015; Guetz 2020 review; Kalai 2016]
Steps:
1. Pick an incident and slow the account down.
2. Have the couple describe the sequence step by step: trigger, each reaction, and how it escalated or ended. [source: Kalai 2016; Guetz 2020 review]
3. Map the sequence onto the DEEP pattern and give it a neutral shared name. [synthesis: naming the pattern is not detailed in the sources]
4. Explore variation: what made it worse, milder or shorter on other occasions. [source: Kalai 2016]
5. Keep the tone intellectual, descriptive and curious rather than heated. Describe the problem as shared. [source: Barraca 2015; Perissutti & Barraca 2013]
6. Use gentle humour where it fits without mocking. [synthesis] [uncertain: humour as a named IBCT technique is not confirmed]
Example language: the shared-problem framing "We have a problem with where your mother is going to live." (source: Barraca 2015). Illustrative: "Let's look at this like scientists watching a film. Who did what first? ... So this was your 'chase-and-retreat' dance again. What was different on the night it fizzled out?"
Watch for: Partners using "we" and "the pattern", laughing together about the cycle, or catching it early at home. A slide back into blame means the incident is too hot: switch to empathic joining. [synthesis]

C. Tolerance building: overview

Use tolerance building when full acceptance is not achievable. The goal is to make the partner's unwanted behaviour less painful, so that it sets off less of the polarizing cycle, without expecting the partner to welcome it. The source compares this to exposure: you expose the couple to the conflict in a safe setting so that the response loses intensity. The four techniques below are the ones the sources list. [source: Barraca 2015; Perissutti & Barraca 2013; Jacobson et al. 2000] Never use these techniques for abusive, coercive or dangerous behaviour. [source: Barraca 2015 on ethical limits]

C1. Pointing out positive features of negative behaviour

Purpose: Reduce how personally the complaint is taken, by showing the useful function of the disliked behaviour or its link to qualities that first attracted the partner. [source: Barraca 2015; Kalai 2016]
Steps:
1. Identify the difference behind the complaint.
2. Ask how the trait helps the couple now, or what drew the complaining partner to it at first.
3. Reframe it as part of the balance between them, without denying the cost. [source: Kalai 2016] [synthesis: step order]
Example language (illustrative): "Her spontaneity drives you mad when plans change. Is it connected to the liveliness you fell for? And your planning gives the two of you some stability. Maybe you each supply what the other lacks."
Watch for: The reframe sounding like you dismiss real pain. It must be believable to the complainant and must not be used to excuse hurtful behaviour. [synthesis]

C2. Practising negative behaviour in session (role-play)

Purpose: Desensitise both partners to the pattern and build awareness of it, by enacting the problem behaviour in session while calm. [source: Barraca 2015; Perissutti & Barraca 2013; Kalai 2016]
Steps:
1. Explain the rationale: practising the pattern when emotions are low lets each partner observe it and react less.
2. Choose a mild-to-moderate, typical incident.
3. Ask the couple to re-enact it briefly.
4. Pause to explore what each felt and noticed, and the soft emotions involved.
5. Debrief by linking it to the DEEP pattern. [synthesis: steps 1 to 5; sources name the technique without step detail]
Example language (illustrative): "Let's run the Friday-night argument now, on purpose, at about half strength. Jo, start with the comment about being late. Stop. What did you each notice in your body?"
Watch for: Real escalation: stop it, and use unified detachment instead. Use only with couples who can stay regulated. [synthesis]

C3. Faking negative behaviour at home

Purpose: Reduce the impact of the behaviour and turn it into an observed, shared pattern. [source: Barraca 2015; Perissutti & Barraca 2013]
Steps:
1. With both partners present, instruct the partner who does the behaviour to perform it deliberately a few times during the week, at moments when they do not feel the urge.
2. The partner who receives it does not know which instances are faked.
3. The faking partner reveals the fake shortly afterwards, before it escalates, and the two briefly observe the reactions together.
4. Review at the next session. The sources name the technique and give the coded instruction "I want you to fake him triggering your buttons." (source: McGinn 2012, IBCT trial sessions). [synthesis: steps 2 to 4; not detailed in the sources]
Example language (illustrative): "This week, Tom, a couple of times when you're not actually annoyed, sigh and check your phone while she's talking. Then tell her within a minute that you were faking it, and talk about what each of you noticed."
Watch for: The receiving partner must agree to the task in session. The task should feel playful, not deceptive. Drop it if it causes real hurt. [synthesis]

C4. Self-care

Purpose: Increase tolerance by helping each partner meet their own needs, or find other support, when the partner cannot or will not meet them. [source: Barraca 2015; Perissutti & Barraca 2013; Kalai 2016]
Steps: Identify the unmet need behind the complaint. Brainstorm what the person can do for themselves, or through friends and family, when the partner's behaviour occurs. Plan when to use it. [synthesis: steps]
Example language (illustrative): "When he needs an evening alone, what could you do that you'd actually enjoy, rather than waiting and feeling shut out?"
Watch for: Self-care being used to disengage from the relationship. It should lower pressure on the relationship, not replace it. [synthesis]

D. Deliberate change: overview

IBCT keeps the change strategies of TBCT, adapted from Jacobson & Margolin (1979): behaviour exchange, communication training and problem-solving training, which aim to increase or decrease the frequency or intensity of specific behaviours. [source: Barraca 2015; Perissutti & Barraca 2013; Jacobson et al. 2000] A review of the 2020 manual lists the intervention-phase tools as empathic joining, unified detachment, tolerance building, "dyadic behavioral activation" and communication and problem-solving training. [source: Guetz 2020 review] Sources do not give the manual's step-by-step change procedures. The steps below are standard behavioural couple therapy practice. [synthesis] [uncertain: the exact IBCT 2020 procedures]

D1. Behaviour exchange (dyadic behavioural activation in the 2020 edition)

Purpose: Increase positive behaviours and improve the climate of the relationship. TBCT starts with this, but in highly coercive couples starting here is less likely to work, so in IBCT it is usually introduced after some acceptance work. [source: Barraca 2015; Jacobson et al. 2000] In the 2020 edition, behaviour exchange appears to have become "dyadic behavioral activation". [uncertain: inferred from Guetz 2020 review]
Steps: [synthesis]
1. Each partner privately lists small, concrete things they could do that would please the other.
2. Each chooses some to do during the week, without bargaining or keeping score.
3. Each notices and acknowledges what the other did.
4. Review in session: what was done, what was noticed, and what had most effect.
5. Refine the lists using the partner's feedback.
Example language (illustrative): "Without asking each other, write down a few small things you think would make your partner's day a bit better. Pick some to do this week. Next time we'll hear what landed."
Watch for: Score-keeping, or "they only did it because they were told". Frame these as signs the pattern needs acceptance work first. [synthesis]

D2. Communication training

Purpose: Help partners express themselves more openly, directly and clearly and listen accurately. IBCT tends to shape communication within real discussions rather than drilling formal rules, and the sources note these skills also help build acceptance. [source: UCLA IBCT about; Barraca 2015; Porche, ACBS slides]
Steps: [synthesis: standard speaker and listener skills]
1. Speaker: talk about your own feelings and experience of a specific event rather than about the partner's character.
2. Listener: paraphrase the speaker's main point and feelings before replying, and check you have it right.
3. Swap roles.
4. Therapist: coach in the moment, ask for a redo when blame creeps in, and model a fuller, more revealing version of the message. [source: Porche, ACBS slides]
5. Practise on incidents tied to the theme, starting with milder ones.
Example language (illustrative): "Try that again, but tell him what happened inside you when the plans changed, rather than what he always does." ... "Before you answer, can you say back what you heard?"
Watch for: Mechanical, scripted exchanges. If the skill feels rule-bound, return to shaping within live discussion. [synthesis, consistent with the contingency-shaped principle]

D3. Problem-solving training

Purpose: Joint decision-making on changeable issues, such as a changeable external stressor or a concrete behaviour. [source: Barraca 2015; Aarhus University IBCT page]
Steps: [synthesis: standard behavioural couple therapy problem-solving]
1. Agree one specific problem and a time to discuss it, not in the middle of a fight.
2. Define the problem specifically and without blame, each partner acknowledging their own part.
3. Generate several options without judging them.
4. Evaluate the options and agree a specific, time-limited trial (who, what, when).
5. Review the result next session and adjust.
Example language (illustrative): "Let's define it in one sentence that you'd both sign. Now, without judging yet, what are all the ways the Sunday visits could be handled?"
Watch for: Defining the problem turning into blame. If so, go back to unified detachment. Agreements broken repeatedly suggest an unaddressed difference that needs acceptance work. [synthesis]

D4. Direct change suggestions

Purpose: Brief, practical therapist suggestions aimed at a specific distressing behaviour, used within acceptance-focused sessions. [source: McGinn 2012]
Steps: When an incident shows an avoidable trigger, suggest one concrete alternative and check that both partners accept it. [synthesis]
Example language: "Well what if you took her somewhere where she couldn't berate you?" (coded direct change strategy from an IBCT trial session; source: McGinn 2012)
Watch for: Suggestions that favour one partner. Keep them balanced. [synthesis]

E1. Incident-focused session work

Purpose: The standard vehicle of active treatment: real, emotionally live events tied to the theme. [source: UCLA IBCT about; Barraca 2015]
Steps:
1. At the start, ask about the week: any significant positive or negative incidents linked to the theme, and any upcoming situations or decisions.
2. Choose the most salient one. Prefer recent incidents (the last few days) over old grievances.
3. Work it with empathic joining, unified detachment, tolerance or change, depending on the formulation and the state of the couple.
4. When no incident is available, discuss a general issue related to the theme.
5. Note positive incidents and use them to show what is already working. [source for steps 1, 2 and 4: UCLA IBCT about; Barraca 2015] [synthesis: steps 3 and 5]
Example language (illustrative): "Was there a moment this week when the closeness-and-space thing came up, either a rough one or one that went better than usual? And is anything coming up that might stir it?"
Watch for: Over time, incidents getting shorter and less intense, and recovering faster. [synthesis]

E2. Interrupting escalation

Purpose: Block the couple's typical destructive pattern in session, so that it is not rehearsed in front of you. [source: McGinn 2012]
Steps:
1. Step in early, with voice or hand, as soon as the sequence starts.
2. Name what is happening without blame.
3. Redirect, for example to the soft emotion (empathic joining) or to describing the pattern (unified detachment). [synthesis: steps 2 and 3]
Example language: "Now, now, let's not, let's not go down this path." (therapist speech coded in IBCT trial sessions; source: McGinn 2012)
Watch for: Interrupting so often that one partner feels silenced. Balance your interruptions between partners. [synthesis]

E3. Adjuncts: reading and the online programme

Purpose: Strengthen the formulation and learning between sessions. [source: UCLA IBCT about; UCLA IBCT resources]
Steps:
1. Suggest Reconcilable Differences (2nd ed., 2014) during therapy, and discuss which ideas fit the couple.
2. For couples who cannot attend weekly therapy, or as an extra, consider OurRelationship, the online IBCT-based programme by Doss and Christensen. [source: UCLA IBCT about; UCLA IBCT resources; Roddy et al. 2016 abstract]
Watch for: Partners using the book against each other ("see, it says you..."). Redirect to self-observation. [synthesis]

E4. Spacing out sessions and termination

Purpose: Consolidate gains and prepare for setbacks. [source: Aarhus University IBCT page; UCLA IBCT about]
Steps:
1. Once incidents are being handled well, move to fortnightly and then less frequent sessions.
2. In the final session, review the DEEP analysis, what has changed and what has been accepted.
3. Plan how the couple will spot and handle the old pattern returning. [source: Aarhus University IBCT page]
Example language (illustrative): "Your differences haven't disappeared, and they won't. What's changed is how you catch the cycle. When it shows up again, what will be your first sign, and what will you each do?"
Watch for: Expecting a relapse-free future. Normalise setbacks as part of the pattern. [synthesis]

5. Handling problems

Where guidance is not tagged with a source, it is my own synthesis consistent with IBCT principles. The 2020 manual reportedly includes chapters on violence, sexual problems, infidelity, psychopathology and diversity, but these are not drawn on here. [source: Guetz 2020 review] [uncertain]

Escalation in session (overwhelm). Interrupt early (E2). [source: McGinn 2012] Then move from the hot content to describing the pattern (unified detachment) or to soft emotion (empathic joining). If arousal stays high, take a short break, or speak briefly to each partner in turn about their own feelings. [synthesis]
Partner rejects acceptance ("So I just have to put up with it?"). Explain that acceptance means giving up the losing struggle, not giving in, and never applies to abuse or harassment. Make clear that change strategies are also available. [source: Barraca 2015] Show how understanding often leads to the other partner changing anyway. [source: Jacobson et al. 2000] [synthesis: wording]
Disagreement with the formulation. This is expected: invite corrections in the feedback session and revise. [source: UCLA IBCT about] If one partner still feels blamed, rebalance the formulation so each partner's behaviour is understandable from their own history. [synthesis]
Slow or flat early progress (stuck clients). In the trials, IBCT gains came gradually but steadily, while TBCT gains came quickly and then levelled off. Tell the couple to expect this. [source: Perissutti & Barraca 2013] If several sessions show no shift, check whether you are addressing the true core theme. Consider adding targeted change work (behaviour exchange or problem-solving) on a changeable stressor. [synthesis]
Highly coercive or hostile couple. Behaviour exchange is unlikely to work first in highly coercive couples, so start with acceptance and detachment work. [source: Barraca 2015] Screen for intimate partner violence. [synthesis]
Intimate partner violence. The trials excluded couples with moderate-to-severe violence in the past year. [source: Jacobson et al. 2000] Never frame violence or coercion as a difference to accept. [source: Barraca 2015] Assess each partner privately. Where there is fear, injury, coercive control or escalating violence, do not proceed with conjoint IBCT: give safety planning and refer to specialist services. Low-level, bidirectional aggression without fear may be workable with explicit no-violence agreements and monitoring. [synthesis] [uncertain: the manual's specific protocol]
Ongoing affair or secret disclosed individually. Set your confidentiality policy before the individual sessions. If an affair is ongoing, conjoint work usually needs the affair to end or be disclosed. Agree a route and timeframe for disclosure with the partner involved, or end the conjoint work. [synthesis] [uncertain: the manual's infidelity guidance]
Low or unequal commitment. Assess commitment in the individual sessions. [source: Barraca 2015] The decision after feedback lets the couple opt in or out. [source: UCLA IBCT about] If one partner is leaning out, consider discernment-style work or individual therapy instead of full IBCT. [synthesis]
Non-adherence to homework. IBCT relies less on rule-governed homework than TBCT. [source: Perissutti & Barraca 2013] Treat a missed task as data about the pattern, for example "his doing it would feel like giving in". Explore it with unified detachment rather than pushing compliance, and do more of the work in session. [synthesis]
Behaviour exchange feels insincere ("they only did it because you said so"). This is a predictable limit of rule-governed change. Validate it, then emphasise spontaneous positive acts and acceptance work. [synthesis, consistent with Perissutti & Barraca 2013]
Therapist-alliance rupture or feeling of side-taking. Keep validation balanced and present formulations that are joint. [source: McGinn 2012; Barraca 2015] If a partner feels sided against, name it, take responsibility for any imbalance, and give that partner focused empathic attention. [synthesis]
Tolerance task backfires (faking felt manipulative, role-play escalated). Stop the task, process the hurt with empathic joining, and only retry with full mutual consent and a milder target. [synthesis]
Individual psychopathology or substance misuse. The trials excluded concurrent therapy, medication and alcohol dependence. [source: Jacobson et al. 2000] In routine practice, assess severity. Bring the condition into the DEEP analysis as a sensitivity or stressor where appropriate, and coordinate individual treatment if needed. [synthesis] [uncertain: the manual's psychopathology chapter]
Sexual problems. When sexual dysfunction is the only complaint, consider specialist sex therapy, since it was excluded from the trial. [source: Jacobson et al. 2000] Sexual-interest differences can be included as a D in DEEP. [source: Kalai 2016]
Cultural and intercultural differences. Name culture explicitly within Differences and Emotional sensitivities, and keep a curious, non-judgemental stance. [source: Kalai 2016] A 2024 paper discusses culturally relevant factors in the DEEP analysis with African American couples. [uncertain]
Same-sex couples. Christensen's group offers a video illustration with a gay couple (Christopher Martell), which suggests the same model is used. [source: UCLA IBCT resources] Include minority stress as an external stressor. [synthesis]
Separation during therapy. One IBCT trial couple divorced after session 13. [source: Jacobson et al. 2000] If the couple decides to separate, shift the focus to a respectful separation and, where there are children, co-parenting. [synthesis]

Sources

Sources:

About IBCT (UCLA IBCT site)
IBCT resources (UCLA IBCT site)
Level Up Your Couple Therapy Practice with IBCT Training (OurRelationship)
What is IBCT? (Aarhus University IBCT workshop page)
Barraca Mairal, J. (2015). Integrative Behavioral Couple Therapy (IBCT) as a third-wave therapy. Psicothema, 27(1), 13-18
Perissutti, C. & Barraca Mairal, J. (2013). IBCT vs. Traditional Behavioral Couple Therapy: a theoretical review of the differential effectiveness. Clínica y Salud, 24(1), 11-18
Jacobson, Christensen, Prince, Cordova & Eldridge (2000). Integrative behavioral couple therapy: an acceptance-based, promising new treatment for couple discord. JCCP, 68(2), 351-355
McGinn, M. M. (2012). An examination of change processes in IBCT (doctoral dissertation, UCLA)
Kalai, C. (2016). IBCT for intercultural couples (doctoral dissertation, Pepperdine University)
Guetz, E. P. Book review of Christensen, Doss & Jacobson (2020), The Professional Counselor
Roddy, Nowlan, Doss & Christensen (2016). IBCT: theoretical background, empirical research, and dissemination. Family Process, 55(3) (abstract only)
Cordova, Jacobson & Christensen (1998). Acceptance versus change interventions in behavioral couple therapy (abstract only)
[Porche, C. Using contextual behavioral sciences to be a better couples therapist (ACBS slides)](https://contextualscience.org/files/98. Using contextual behavioral sciences to be a better couples therapist - Slides_0.pdf)
Integrative behavioral couples therapy (Wikipedia)