Summary: The DBT diary card is a nightly tracking sheet, rating emotions, urges and skills used, that Marsha Linehan built into dialectical behavior therapy (DBT) as a required part of treatment for chronic suicidality and borderline personality disorder. DBT as a whole treatment has real trial evidence. The card in isolation, outside therapy, has much less: a couple of studies use it as a research instrument or test it stripped down, but nobody has run a trial of a diary card alone against BPD, the condition DBT was built for. What follows is the card as Linehan designed it, what the evidence actually supports, and an honest voice adaptation.
What is the DBT diary card?
The diary card is a one-page, one-week grid. Each day gets a row. Each row tracks the same categories, filled in every night:
- Emotion intensities, usually rated 0-5 (sadness, anger, fear, shame, joy)
- Urges to self-harm, use substances, or engage in other target behaviors, also rated 0-5
- Whether any target behaviors actually happened that day (self-harm, substance use, disordered eating, depending on the treatment target)
- Which DBT skills were used that day, and how effective they felt
- Medication taken, if relevant
The client fills it in every night, in under a couple of minutes, and brings the completed week to the next therapy session. The therapist reads the row for row for the week and uses it to set the session agenda: the day with the highest urge rating usually gets discussed first, regardless of what either party planned to talk about.
Where it comes from
Marsha Linehan developed dialectical behavior therapy at the University of Washington in the 1980s, building it specifically for people with chronic suicidal behavior and borderline personality disorder (BPD), a population existing therapies handled poorly. She published the first randomized controlled trial of DBT in 1991, and DBT has since become one of the most extensively tested treatments for BPD.
DBT sits on a specific idea in its name: dialectics, holding two seemingly opposed things at once, in this case radical acceptance of where a person is right now alongside a steady push toward change. The diary card is where that idea becomes a daily habit: it does not ask "are you better," it asks "what happened today," neutrally, in numbers, every single day, whether the day was good or terrible.
Standard DBT has four components: weekly individual therapy, a weekly skills group (teaching mindfulness, distress tolerance, emotion regulation, and interpersonal effectiveness), between-session phone coaching, and a therapist consultation team. The diary card is the connective tissue across all of it: it is what the individual therapist actually opens the session with.
Who uses it
The diary card is a clinical instrument used inside DBT treatment, not a public practice with named non-clinical adopters the way morning pages or gratitude journaling are. It shows up wherever DBT is delivered: outpatient DBT programs, in-patient psychiatric units running structured DBT tracks, and increasingly inside DBT-adapted mobile apps that digitize the same rows and ratings. There is no dataset of celebrities or public figures who have described using a diary card specifically, and this page will not manufacture one. If that changes, this section gets famous anchors with sources. Until then, the honest answer is: this is a therapy tool, and its users are DBT clients working with a DBT therapist.
What the evidence actually says
Keep two separate questions apart here, because the research does not support collapsing them.
Question one: does DBT, the full treatment, work? Yes, with real caveats. Kliem, Kröger and Kosfelder's 2010 meta-analysis pooled 16 studies of DBT for BPD (8 randomized, 8 not), covering a 27.3% pre-to-post dropout rate, and found a moderate global effect size and a moderate effect on suicidal and self-injurious behavior specifically, when the analysis included a moderator for RCTs using borderline-specific treatments. There was a small worsening from post-treatment to follow-up in the 5 studies with longer-term data. That is a genuinely solid evidence base for a hard-to-treat population, and it is evidence for the whole package: individual therapy, skills group, coaching, and the diary card together.
Question two: does the diary card, by itself, do anything? Much thinner. Two studies get close. Probst and colleagues (2018) used diary card data from 44 in-patients over a 5-week DBT program, generating 1,334 skill-use ratings and 1,364 suicidal-ideation ratings, and found that days with successfully applied skills had lower suicidal ideation than days with no skill use or unsuccessful skill use. That is a real, useful finding, but the diary card there is the measurement tool that revealed the pattern, not the intervention being tested; the patients were also getting full DBT. Klein, Skinner and Hawley (2013) came closer to isolating the card: they randomized women with binge eating disorder or bulimia to either individually supported diary-card self-monitoring alone (no formal DBT skills teaching, just support for completing the card and building nonjudgmental awareness of eating urges) or full group-based DBT. Both groups improved significantly on binge eating and bulimic symptoms. The diary-card-only condition had smaller, non-significant effects on secondary measures like body dissatisfaction, though it kept people in treatment better than the more intensive group format. That is one preliminary study, on a different condition than BPD, with a small non-clinical-trial-registered sample.
Put plainly: nobody has run a trial of the diary card in isolation, for the population it was built for. What exists says the full DBT package has real evidence, and the card stripped down to a self-monitoring exercise has shown some promise in one adjacent, preliminary study on a different disorder. That is not nothing, and it is not proof the card itself is a treatment.
The protocol
The standard version, as used inside DBT treatment:
- Every night, same time, fill in the row for that day.
- Rate each tracked emotion 0-5 (0 = not present, 5 = overwhelming). Common categories: sadness, anger, fear, shame, joy, or whatever your therapist has set for target emotions.
- Rate urges 0-5 for each tracked target behavior (self-harm, substance use, or whatever behavior the treatment is focused on reducing).
- Mark whether the target behavior actually occurred that day, plainly, yes or no.
- Check off which DBT skills you used, and rate how effective each felt.
- Bring the completed week to your next session. Your therapist reads the highest-urge day first and builds the session from there, not from whatever either of you planned to discuss.
The voice adaptation
The card's format is a grid, seven rows of dense numbers meant to be scanned at once. Speaking it does not replicate that. What a spoken version can do:
A 60-second nightly rating. Instead of filling in cells, say the same numbers out loud: "Sadness 3, anger 1, urge to isolate 4, used opposite action, it helped some." Tag it [diary-card] so entries are searchable later. That takes under a minute and captures the same raw information the card is built to capture.
What you lose: the grid's at-a-glance week view. A therapist reading a paper or app-based diary card can scan seven days of numbers in one look and immediately spot the day that spiked. Seven separate spoken entries do not give you that: you would need to pull each entry and lay the numbers out yourself, or have a therapist do the same, to reconstruct the pattern a real diary card shows for free. A spoken week of ratings is a week of raw data. It is not the summary view the card was designed to be.
What you gain: almost no friction. A grid with six categories per day is a small chore that some clients skip, especially on bad days, which is exactly when the data matters most. Talking for 60 seconds is fast enough to do even on the day you least want to do it.
Try it by voice: Brain Dump: speak your nightly emotion and urge ratings as one tagged entry, then pull up the week's entries side by side before your next therapy session to rebuild the summary view a paper card gives for free.
Common mistakes
Filling it in from memory, days later. The card is designed to be filled in the same night, close to the actual feelings and urges. A week reconstructed from memory on the morning of your appointment loses the granularity that makes the tool useful.
Skipping bad days. The days you most want to skip the card are usually the days with the most useful data in them. A gap in the week is itself information, but only if your therapist knows it is a gap and not a day you forgot to track.
Using it without anyone reviewing it. The diary card's clinical value comes from a therapist reading it and building the session around it. A card, spoken or written, with nobody reading it back is self-monitoring. That is a reasonable thing to do on its own, but it is not DBT, and it should not be described as DBT.
Treating self-monitoring as equivalent to the evidence for full DBT. The trial base backing DBT (Kliem et al.) is evidence for the whole treatment package. It does not transfer to a diary card used alone, outside therapy, however similar the tracking categories look.
When not to do this
If you are experiencing active suicidal ideation, self-harm urges, or symptoms consistent with borderline personality disorder, a self-tracking app is not a substitute for DBT delivered by a trained therapist. The diary card was built as one piece of a four-part treatment with a therapist reviewing it weekly and a full skills curriculum behind it. Tracking the same categories on your own, without that structure, is monitoring your state, not treating it. See a therapist trained in DBT first. A voice-based tracking habit can be something you do alongside that treatment, with your therapist's input on what to track, not before it or instead of it.
Related:
- ACT values journaling: another clinically-rooted journaling exercise, values writing and defusion, from a different therapy tradition
- what 146 randomised studies of expressive writing actually found: the nearest general research tradition on structured emotional writing
- how high performers journal: for comparison, journaling practices with public, non-clinical adopters