Quick answer: A chain analysis in DBT is a structured review of everything that led to a target behaviour: the prompting event, the vulnerability factors behind it, each thought, emotion, sensation and action in the chain, and the consequences that followed. You then look for the links you could influence and plan a different response. Its purpose is understanding rather than blame, and it is one of the few DBT exercises that turns a bad day into usable information.
What is a chain analysis in DBT?
Chain analysis comes from Marsha Linehan’s behavioural approach to treatment. The idea is simple: a problem behaviour does not appear from nowhere. It sits at the end of a chain of events, interpretations, feelings, body sensations and small decisions, each one making the next more likely. If you only look at the last link, the behaviour seems to arrive out of nowhere. If you look at the whole chain, you can usually find several places where the ending could have changed.
DBT uses the term target behaviour for whatever you and your therapist have agreed to work on. That might be self-harm, drinking, bingeing, blowing up at someone, skipping medication, cancelling every plan, or a subtler pattern such as shutting down in conversations. The chain analysis is not reserved for dramatic events. It works on anything that reliably makes your life harder.
Two things make it different from journaling about a bad day. First, it is sequential: you move forward in time and account for every step. Second, it ends in a plan. A chain analysis that produces a clear description and no change to your week is only half finished.
When should you do a chain analysis?
The standard time to run one is after a target behaviour, as soon as you can think clearly enough. Many therapists ask for it within a day or two, while the detail is still available. Memory for intense moments fades quickly and fills itself in with plausible guesses.
It is also worth doing when:
- The same problem keeps returning and the usual explanation (“I don’t know, it just happened”) is not helping.
- You caught yourself close to a target behaviour and want to understand the near miss.
- A session is coming up and you want to bring more than “it was a hard week”.
- A skill that usually works failed, and you want to know which link it failed at.
What it is not for is peak distress. If you are still flooded, a chain analysis becomes another stick to beat yourself with, and the detail you record will be thin. Use a distress tolerance skill first, such as TIPP, and analyse afterwards. If analysing the event reliably sends you back into it, do the chain with your therapist rather than alone.
What are the seven steps of a chain analysis?
Most chain analysis worksheets follow the same sequence, even when the wording differs. The table below is the version Bifocal’s Chain Analysis wizard uses.
| Step | Question to answer | What you are looking for |
|---|---|---|
| 1. Target behaviour | What exactly did you do? | A specific, observable description, not a judgment |
| 2. Prompting event | What set it off? | The event immediately before the chain began |
| 3. Vulnerability factors | What made you more likely that day? | Sleep, illness, hunger, substances, stress, conflict |
| 4. Chain links | What happened next, and next? | Thoughts, emotions, sensations and actions in order |
| 5. Consequences | What followed, short and long term? | Effects on you, on other people, and on how you felt |
| 6. Skillful alternatives | What could you have done at each link? | A realistic alternative for the links you can influence |
| 7. Prevention and repair | What changes now? | One or two specific prevention steps, plus any repair |
If your therapist uses a particular worksheet, use theirs. The structure matters far more than the headings, and swapping formats mid-treatment makes it harder to compare one analysis with the next.
How do you describe the target behaviour without judging yourself?
Write what a camera would have seen. “I drank two bottles of wine alone in the kitchen” is a target behaviour. “I was pathetic again” is a verdict, and verdicts are not analysable. This is not about letting yourself off the hook. It is about keeping the description accurate enough that the chain makes sense.
The same rule applies to the prompting event. “My partner criticised me” is already an interpretation. “My partner said the kitchen was a mess at 6pm” is an event. You can work with the second one. The first hides the moment where the interpretation entered the chain, which is often exactly where the useful work is.
How do you identify vulnerability factors?
Vulnerability factors are the conditions that lowered the threshold for the behaviour before the prompting event even happened. Common ones include:
- Poor sleep, especially several short nights in a row.
- Physical illness or pain, including the tail end of an infection.
- Hunger or poor diet, or skipping meals on a busy day.
- Medication issues, such as a missed dose or a changed prescription.
- Substance use, including alcohol the night before.
- High stress, such as a deadline, a move or money trouble.
- Relationship conflict, including an argument that was never resolved.
- Any other stressor that used up capacity, such as a difficult commute or a medical appointment.
Bifocal’s Chain Analysis presents these as a picker before the chain itself, so the day’s setup is recorded separately from the events. That separation is useful. Vulnerability factors are not excuses, and they are not the same as causes. They are the reason a small prompt produced a large reaction. Once you can see “three nights of five hours’ sleep plus a skipped lunch” written down, the prevention plan often writes itself.
How do you build the chain link by link?
Start at the prompting event and move forward. At each point, ask: what happened next, inside or outside me? Record four kinds of link:
- Thoughts: “She thinks I’m useless.” “I can’t cope with this.” “What’s the point.”
- Emotions: shame, anger, fear, numbness, and roughly how intense each one was.
- Sensations: tight chest, hot face, heavy limbs, nausea, restlessness.
- Actions: what you did, including small ones such as leaving the room, picking up your phone, pouring a drink or going silent.
Aim for the level of detail that feels slightly excessive. The links that matter are often the ones that seem too minor to mention: the moment you stopped answering, the moment you opened the fridge, the moment you decided not to text anyone. Those are the hinges.
Two practical tips make this easier. First, work forward rather than backward. Starting from the behaviour and asking “why?” tends to produce explanations; starting from the event and asking “then what?” tends to produce a sequence. Second, write in the present tense if it helps you re-enter the moment. “I’m standing in the kitchen, my face is hot, I’m thinking nobody helps me.” Detail returns more easily that way.
If you hit a blank, mark it as a blank rather than inventing a link. Gaps are information too, and they are worth taking to a therapist.
What is the difference between a chain analysis and a missing links analysis?
A missing links analysis is the companion exercise for when a behaviour happened but you cannot reconstruct the chain. This is common after self-harm, heavy drinking or a dissociative episode, where memory is patchy by nature. Instead of forcing a sequence you do not have, you identify where the links are missing and what got in the way of remembering: shame, intoxication, dissociation, avoidance, or simply time.
The purpose is different. A chain analysis explains a sequence you can recall. A missing links analysis looks at the gap itself and asks what would make recall more likely next time, such as writing sooner, telling someone at the time, or noting one detail on your phone. If you sit down to do a chain analysis and find only blanks, you have not failed at the exercise. You have found out which exercise you need.
What should you do with the results?
The final steps are where the analysis earns its keep.
- Mark the controllable links. Go back through the chain and identify the points where a different action was realistically available. Not every link is controllable: you cannot choose to be ill, and you cannot choose someone else’s behaviour. Aim for two or three links where you had some room.
- Choose one or two prevention strategies. More than that and nothing gets practised. “Set an alarm for lunch” is a prevention strategy. “Be kinder to myself” is a wish.
- Write a skillful alternative for each hinge. What would you have done at that exact point? “Texted my sister instead of opening the wine” is specific enough to rehearse.
- Plan any repair. If the behaviour affected someone, note what repair looks like: an apology, a conversation, replacing something, telling the truth. Chain analysis is not complete if it only attends to your own discomfort.
- Rehearse the alternative before you need it. Run the scenario in your head, including the difficult parts, and decide what you will do when the first alternative does not work. Bifocal’s journal has a Cope Ahead Thoughts entry type for exactly this.
- Bring it to your session. A written chain gives a therapist far more to work with than a summary, and it stops the session disappearing into retelling the week.
Finally, review the analysis a week or a month later. The point of the plan is not to predict the future perfectly. It is to find out which prevention steps actually hold when the same vulnerability factors come back.
What are common chain analysis mistakes?
- Starting at the behaviour. The chain begins with the prompting event, and the vulnerability factors come before that. Begin at the end and you skip the part you can change.
- Writing judgments instead of observations. “I overreacted” is a conclusion. “I shouted, then left the room” is a link.
- Stopping at “I don’t know”. Treat it as a missing link and get curious about the gap rather than closing the analysis.
- Confusing a trigger with a cause. A text message did not cause the behaviour. It landed on a chain that was already primed.
- Choosing too many fixes. Five prevention strategies is a list. One is a plan.
- Only doing it after the worst has happened. Some of the most useful analyses happen after a near miss, when the chain is visible and the cost is lower.
- Never reading it again. The analysis is a working document. If it lives in a notebook you never open, it is not doing anything.
How do you run a chain analysis in Bifocal?
Bifocal’s Chain Analysis is a guided wizard rather than a blank page, which matters when you are tired and ashamed and the last thing you want is an empty form. You name the target behaviour, describe the prompting event, pick the vulnerability factors from a grid, then add links one at a time as thoughts, emotions, sensations or actions. Each link has its own field for a skillful alternative, so the plan is attached to the exact moment it belongs to rather than collected at the end. The wizard then covers consequences, prevention and repair.
Saved analyses are kept with your entries, so you can read an old chain before a session and see whether the same links keep appearing. When you want a second pair of eyes, Bifocal can export a PDF report of your records, with no retyping and no screenshots. Everything works offline, there is no account, and your entries stay on your iPhone or in your own private iCloud. If you are comparing apps more broadly, look at how each one handles Chain Analysis, session-ready export and privacy before you choose.
If you are new to the diary card that usually sits alongside a chain analysis, start with how to use a DBT diary card. The card records what happened; the chain explains why.
Frequently asked questions
What is a chain analysis in DBT?
It is a step-by-step review of the events, thoughts, feelings, body sensations and actions that led to a target behaviour, followed by the consequences and the points where a different choice was possible. It ends with a prevention plan rather than a verdict.
How long should a chain analysis take?
Twenty to forty minutes is typical once you are used to the format. The first few take longer because you are learning what counts as a link. If you find yourself writing for two hours, you are probably describing the whole week rather than one chain.
Can you do a chain analysis on your own?
Yes, and many people do between sessions. It is usually more useful with a therapist, because an outside perspective catches the links you consistently skip. Bring the written analysis to the session rather than summarising it from memory.
What is the difference between a chain analysis and a diary card?
A diary card is a daily record of emotions, urges, target behaviours and skills used. A chain analysis is a deep dive into one specific incident. The card tells you a target behaviour happened on Tuesday; the chain tells you how Tuesday got there.
What if I can’t remember the chain?
Use a missing links analysis instead. Identify where the gaps are and what made remembering difficult, then note one thing that would help you capture more detail next time. Do not fill the gaps with guesses.
Is chain analysis only for serious behaviours?
No. It works on anything that reliably causes problems: snapping at a colleague, cancelling plans, doomscrolling until 2am, skipping meals. The behaviour needs to be specific and repeated, not dramatic.
Does a chain analysis mean I’m blaming myself?
It should do the opposite. Blame stops at “I’m bad”. A chain analysis spreads the event across time and circumstances and finds the places where change is possible. If yours is making you feel worse, the judgments have crept into the description. Rewrite those lines as observations.