DBT Diary Cards: A Clinician's Guide

Most writing about diary cards is addressed to clients. This is the other half: how to design one, what the self-monitoring literature does and doesn't support, and what to do when the cards stop coming back.

If you need the card itself or a walkthrough for a client, start with the DBT diary card guide and free PDF.

What the card was designed to do

The diary card is not a mood tracker that happens to be used in DBT. It was built to serve three specific functions in Linehan's model, and cards that drift away from those functions tend to quietly stop being useful.

It sets the session agenda. DBT's target hierarchy — life-threatening behaviors, then therapy-interfering behaviors, then quality-of-life-interfering behaviors — is meant to be applied to data, not to whatever the client raises first. Without a card, the agenda defaults to recency and salience.

It makes behavior visible between sessions. Retrospective self-report over a week is unreliable in predictable directions: peak experiences dominate, and current mood colors recall of the whole period. Daily entry is an attempt to sample rather than reconstruct.

It is the entry point to chain analysis. A card that shows a Thursday spike gives you a specific incident to work. A card that shows "bad week" gives you nothing to chain.

Anything you add to a card should serve one of those three. Additions that don't are the main reason cards get long and completion falls.

Designing the card

Targets are the part that must be individualized. The emotion list can be near-universal; the target behaviors cannot. A card carrying targets the client isn't actually working on trains them to fill it out inattentively — and inattentive completion is worse than no card, because it looks like data.

Keep the scales fixed. 0–5 for emotions and urges, 0–7 for overall skills use. Changing a scale mid-treatment silently breaks every comparison across the change point. If you must change one, treat it as a new baseline and say so in the record.

Rate peaks, not averages. This is the single most common design failure in homemade cards. An averaged day hides exactly the volatility you're treating.

Separate urge from action. Collapsing them destroys the most clinically useful cell on the card: high urge, no action. That combination is evidence the treatment is working, and clients who have nowhere to record it often conclude the week was a failure.

Resist additions. Sleep and medication adherence usually earn their place. Beyond that, each field costs completion. A card the client abandons in week three measures nothing.

To assemble one against a specific treatment plan rather than editing a generic template, use the diary card builder.

What the evidence actually supports

Worth being precise here, because diary cards get oversold.

The strong claim that holds up is about DBT as a whole: comprehensive DBT reduces suicide attempts, self-harm, and hospitalization in borderline personality disorder. The diary card is a component of that package, not an independently validated intervention.

The narrower claim that also holds up is about self-monitoring generally — the act of systematically recording a behavior tends to change it, an effect documented across behavior therapy well before DBT existed. This is why clients sometimes improve in the first two weeks of carding with no other change. That is real, and it is also usually partial and temporary on its own.

What the evidence does not support is treating diary card data as a precise measurement instrument. It's self-report, collected under variable conditions, with no psychometric validation of any particular card layout. Use it to find patterns and set agendas. Don't use it as your outcome measure — that's what validated instruments like the PHQ-9 or a Y-BOCS are for, and running both is standard practice.

When cards stop coming back

Non-completion is information, not misconduct. The useful move is to treat it as a behavior to analyze rather than a rule to enforce — which in DBT terms usually means a missing-links analysis.

The four causes worth ruling out first:

• The card doesn't match the treatment. Targets are stale, or were never the client's words. Most common cause, easiest fix.
• It's too long. Twelve emotions and nine targets is a form, not a card.
• The client doesn't believe you read it. This is the one clinicians underestimate. If review is inconsistent, completion collapses — and reasonably so. Reviewing the card first, every session, is the intervention.
• Shame. A client who had a hard week may not want to hand you a record of it. Naming that directly tends to work better than restating the expectation.

A fifth, quieter cause: the card is genuinely too hard during a crisis week, which is precisely when the data matters most. That's an argument for a shortened crisis version rather than for insisting on the full card.

Where the format helps or hurts

Paper is visible and requires nothing. Its cost is that trends live only in your memory, and you receive the week after it's over.

Digital adds reminders, real-time visibility of whether the card is being completed at all, and automatic trends — which matter most for the clients least likely to hand you a completed card. Its cost is another app, another login, and a client whose phone is part of the clinical picture.

Neither is correct in general. See paper vs. digital diary cards for the trade-offs, and the app comparison if a client wants to choose their own.

References

• Linehan, M. M. (1993). Cognitive-Behavioral Treatment of Borderline Personality Disorder. Guilford Press.
• Linehan, M. M. (2015). DBT Skills Training Manual (2nd ed.). Guilford Press.
• Korotitsch, W. J., & Nelson-Gray, R. O. (1999). An overview of self-monitoring research in assessment and treatment. Psychological Assessment, 11(4), 415–425.