Cognitive behavioral therapy (CBT) and dialectical behavior therapy (DBT) share some similarities. They also have distinct differences.
Both are effective. But they differ in their target populations, philosophical underpinnings, and treatment emphasis.
Understanding these differences is important to ensure that individuals receive the most appropriate treatment based on their needs. This article will outline the similarities and differences between these two therapies.
Key Takeaways
- Core difference: CBT identifies and challenges negative thought patterns; DBT, a form of CBT, adds acceptance-based skills for intense, hard-to-regulate emotions.
- Origin: Marsha Linehan developed DBT in the 1980s for chronically suicidal, self-harming clients, many of whom met criteria for borderline personality disorder (BPD).
- Length: CBT usually finishes in 6 to 20 weeks. DBT typically runs at least six months, combining individual therapy with a weekly skills group.
- Best fit: CBT tends to work best for anxiety, depression, OCD, phobias, and PTSD. DBT tends to work best for BPD, self-harm, and chronic suicidal thoughts.
- Evidence base: Both have randomized trial support, but a 2020 Cochrane review rated the DBT trial evidence as consistently low quality, even where it found real benefits.
- Not either/or: Other approaches, such as ACT or EMDR, may suit a person whose needs differ from what either CBT or DBT targets.
What Is the difference between CBT and DBT?
Cognitive behavioral therapy (CBT) identifies and challenges negative thought patterns to change behaviors and emotional responses. Dialectical behavior therapy (DBT), a form of CBT, emphasizes acceptance and change, teaching coping mechanisms for emotional regulation, distress tolerance, interpersonal effectiveness, and mindfulness.
While both target behavior and thought, DBT places a stronger emphasis on emotional regulation and interpersonal relationships.

Difference in emphasis
Both CBT and DBT aim to help the client change unhelpful patterns. CBT focuses more heavily on thoughts themselves and how to redirect them.
CBT helps people spot cognitive distortions such as catastrophizing, mental filtering, and overgeneralization, then practice dropping these habits of thinking.
DBT works differently. It balances acceptance with change rather than leaning heavily on changing thoughts.
The client learns to validate their own reality rather than actively challenge it, unlike the more confrontational process used in CBT.
Difference in time
CBT is usually completed after a short amount of time. Sessions focus on specific problems with clear goals, so there is something concrete to work toward.
Clients usually finish CBT once they reach their goals, typically within 6 to 20 weeks. DBT takes longer.
It runs over an extended period so the therapist can consider the whole picture and work through several issues with the client. DBT often takes at least six months to complete all the modules, and can even last years in some cases.
Difference in practice
CBT nearly always takes place one-on-one with the therapist. Client and therapist work together in session, and the client often takes homework away too.
DBT adds a group component. Most DBT treatment combines individual weekly sessions with a weekly group therapy session.
In these group sessions, people learn skills from one of the four modules and practice them together. The group setting itself offers a safe, supportive place to try the skills out.
Differences in the kind of change created
CBT helps clients recognize and change their problematic patterns of thinking and behavior to have a healthier and more realistic outlook on life.
DBT works differently. It helps clients regulate intense emotions and improve relationships through validation, acceptance, and behavioral change.
Validation means the therapist communicates, again and again, that a client’s emotional reactions make sense given their history and circumstances. It is not agreement or approval, but a way of showing the client their pain is being taken seriously.
This acceptance is not passive. It sits alongside an active push toward new behavior, so the client changes without feeling dismissed along the way.
Difference in suitability
There is a difference in how suitable each therapy is for improving the symptoms of mental health conditions. For depression, anxiety, obsessive-compulsive disorder (OCD), phobias, and posttraumatic stress disorder (PTSD), research has shown that CBT tends to be the more effective treatment.
In comparison, DBT tends to be better suited to those with BPD, self-harming behaviors, and chronic suicidal ideation.
What is cognitive behavioral therapy?
Cognitive behavioral therapy (CBT) is a widely used type of psychotherapy. It helps people identify unhelpful thinking patterns and behaviors, then work with the therapist to build healthier ones.
CBT emerged in the 1960s. Psychiatrist Aaron Beck noticed that certain types of thinking worsened emotional problems, which he labeled automatic negative thoughts.
People commonly seek CBT for anxiety disorders and depression. It can also help with several other mental health conditions or general distress.
CBT focuses on changing the automatic negative thoughts that contribute to and worsen these difficulties.
What is the idea behind CBT?
CBT is based on the idea that how we think (cognition), how we feel (emotion), and how we act (behavior) all interact together.
Therefore, negative and unrealistic thoughts can result in feelings of distress and, in turn, have a negative impact on actions.
CBT aims to help people become aware of when they make negative interpretations and behavioral patterns and helps to develop alternative ways of thinking and behaving to reduce psychological distress.
What are some techniques used in CBT?
Identifying negative thoughts – this involves learning about how an individual’s thoughts, feelings, and situations can contribute to maladaptive behaviors.
Practicing new skills can involve practicing coping skills and rehearsing them with the therapist to use in real-life situations.
Goal setting – this is an important step in recovery. The therapist helps the client set clear, specific goals. Short- and long-term goals both matter, and the process counts as much as the outcome.
Problem-solving – CBT can help people identify and solve problems from life stressors. This can reduce the negative impact of psychological and physical illness.
Self-monitoring – this is often done through diary work. Clients track behaviors, symptoms, or experiences over time and share them with the therapist, giving the therapist the information needed to guide treatment.
What is dialectical behavioral therapy?
Dialectical behavioral therapy (DBT) is a type of CBT originally intended to treat borderline personality disorder but has since been adapted to treat other conditions.
This type of therapy is used to help people who have difficulty regulating their emotions or are exhibiting self-destructive behaviors such as eating disorders, substance-use disorders, or those who exhibit self-harming behavior.
DBT helps to address thoughts and behaviors while incorporating strategies such as emotional regulation and mindfulness.
DBT aims to teach people how to develop healthy ways to cope with stress, regulate their emotions, and improve relationships with others. This therapy can help people who may lack useful coping skills and find that they move from one crisis to another.
The Dialectic: Balancing Acceptance and Change
DBT gets its name from the dialectic, the idea that two seemingly opposite truths can both be true at once. A client is doing the best they can, and at the same time, they need to try harder and change.
DBT holds both together rather than picking one.
This plays out in every session. The therapist validates that the client’s reactions make sense given their history, while also pushing, step by step, toward new behavior. Neither side wins outright.
Marsha Linehan built this balance after her earlier, purely change-focused therapy kept backfiring. Clients felt constant pressure to change as proof their pain was not being taken seriously. But pure acceptance left dangerous behavior unaddressed. The dialectic was her answer to both problems.
Why was DBT developed?
Marsha Linehan developed DBT in the 1980s to help people with suicidal thoughts who often had a borderline personality disorder (BPD) diagnosis. Individuals with BPD often suffer from the following symptoms:
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Experience intense emotions
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Have difficulties with their relationships
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Their actions are very impulsive
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Their thinking is very black and white
Therefore, DBT was developed to help people with DBT manage these core symptoms by providing them with skills to reach their goals.
This way, people with BPD would know how to respond to challenging situations or manage relationships, to improve their quality of life overall.
Linehan’s own history gives this origin story an unusual weight. In 2011, she spoke publicly for the first time about being hospitalized at seventeen for severe mental illness and self-harm. “I was in hell,” she said of that time.
She has described making a private vow that, once she got out, she would return and help other people find a way out of the same suffering. That same balance, between accepting unbearable pain as real and refusing to be defeated by it, became DBT’s central idea.
Why Emotions Feel So Intense: The Biosocial Theory
DBT explains the intense emotions common in BPD using the biosocial theory. It is not biology or environment alone.
It is a transaction between the two that builds up over childhood and adolescence.
Emotional vulnerability is the biological half: a temperament that reacts to emotional triggers faster, harder, and for longer than most people’s. It is a difference in degree, not a flaw.
An invalidating environment is the social half. This is most often a family in which a child’s emotional reactions are dismissed, punished, or labeled as “too sensitive” rather than taken seriously.
Neither factor works alone.
A sensitive child in an invalidating environment never gets the chance to learn to trust their own reactions, because the people around them keep saying those reactions are wrong.
What are some techniques used in DBT?
There are four modules that are covered in DBT:
Mindfulness – DBT teaches people to focus on the present moment and feel grounded. This is especially useful for those struggling with an unstable sense of self and difficulties staying focused on the present.
That alone breaks the automatic thought’s grip.
Emotion regulation – DBT helps people learn how to manage their emotions so that intense emotions do not end up controlling the situation. People learn that they can choose how to react to strong emotions, or avoid situations they know will trigger them.
Distress tolerance – DBT teaches people how to manage upsetting situations without making them worse. The goal is simple: ride out the moment.
Clients learn healthy ways to manage behavior and emotion right then, so they do not act impulsively or take risks.
Interpersonal effectiveness – DBT teaches healthy communication skills. This means asking for what you need, saying no, and handling conflict while keeping the relationship intact. It also builds listening and conflict-resolution skills that help build trust with others.
What can CBT and DBT Help With?
CBT is used to treat a range of conditions, including:
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Bipolar disorder
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Addiction
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Anger
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Eating disorders
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Phobias
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Personality disorders
Aside from mental health conditions, CBT has also been used to help people cope with the following:
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Chronic pain
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Divorce or breakups
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Grief
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Insomnia
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Relationship problems
Although DBT was developed with borderline personality disorder in mind, the techniques used in DBT can be effective for many of the following mental health conditions:
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Depression
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Bipolar disorder
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PTSD
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Eating disorders
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Substance-use disorders
Aside from mental health conditions, DBT has also been used to help people cope with the following:
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Intense emotions
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Managing challenging situations
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Relationship difficulties
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Self-injurious behavior and suicidal ideation
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Extreme stress
CBT and DBT have shown to be very helpful for various issues. Some of the notable benefits include:
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Improving communication skills
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Healthier thinking patterns and a greater awareness of negative thoughts
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Improved ability to make healthier choices
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Greater insights into one’s own life
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Improved coping strategies to manage distress
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Being able to view situations from another perspective
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Helping people to move toward a solution
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Learning more about one’s own goals and values
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Developing skills for facing challenges in the present and in the future
Effectiveness of CBT
CBT is one of the most researched therapy types, partly because treatment focuses on highly specific goals, and results can be measured relatively easily.
Anxiety and related disorders: Meta-analyses show CBT is strongly effective for anxiety-related disorders, including OCD and PTSD, as well as for anger problems, drug abuse, and general stress (Hofmann et al., 2012).
Versus placebo: Another meta-analysis found CBT to be a moderately effective treatment for anxiety disorders when compared to a placebo (Carpenter et al., 2018).
Online delivery: CBT delivered online has been found to be as effective as face-to-face sessions (Kumar et al., 2017).
Children and adolescents: CBT can be effective in treating depression and anxiety symptoms in children and adolescents (Oud et al., 2019).
Insomnia: CBT for insomnia is effective and helps prevent relapse (Okajima et al., 2011).
Effectiveness of DBT
Psychiatrist Blaise Aguirre directs McLean Hospital’s DBT-based programme for adolescents with BPD. “DBT skills are very effective for getting patients to stop self-injury and suicidality,” he explains.
But he also cautions that “it’s tougher to change the self-loathing and self-hatred that can become fused with a borderline person’s identity.” The two goals are not the same. Reducing symptoms does not automatically change how a person sees themselves.
Founding trial: Linehan et al. (1991) ran the first randomized controlled trial of DBT in women with BPD. After DBT, participants showed significant improvements in chronic suicidal and self-injurious behavior.
Inpatient settings: A systematic review found that DBT delivered on psychiatric inpatient units shows promise for reducing self-harm and improving affect regulation during an admission. The inpatient evidence base remains smaller and more mixed than outpatient research (Bloom et al., 2012).
Routine outpatient care: DBT has continued to show benefit in ordinary clinical practice, with one study reporting substantial symptom improvement after a year of therapy (Stiglmayr et al., 2014).
Reduced service use: DBT is often recommended as a first-line treatment for BPD and has been linked to reduced need for medical care and medication (May et al., 2016).
Bipolar disorder: DBT skills have also reduced depressive symptoms and improved affective control and mindfulness self-efficacy in people with bipolar disorder (Van Dijk et al., 2013).
PTSD: After completing DBT, individuals with PTSD were less likely to attempt suicide or self-harm, and reported reduced shame, anxiety, and trauma-related guilt (Harned et al., 2014).
Contemporary Research
Since 2015, DBT research has moved in two directions. One line asks how strong the evidence really is once every trial is pooled and graded. The other extends DBT to new problems.
The 2020 Cochrane Review
Aim: The DBT evidence base needed a stress test. Storebø and colleagues (2020) set out to establish, using Cochrane’s formal bias-grading methods, how effective psychological therapies for BPD actually are.
Method: DBT led the field. A systematic review and meta-analysis pooled 75 randomized controlled trials involving 4,507 participants, testing DBT in 24 of them.
Results: The findings were real. DBT reduced BPD symptom severity and self-harm versus treatment as usual. But every trial carried a high risk of bias, and most outcomes were rated low quality.
Conclusion: DBT holds up. It is one of the two best-supported treatments for BPD, but the evidence remains thin and needs larger, better trials.
DBT for Trauma: The DBT-PTSD Trial
Aim: Some DBT clients also carry serious trauma histories. Bohus and colleagues (2020) tested whether a trauma-focused version of DBT, called DBT-PTSD, works at least as well as an established trauma treatment, cognitive processing therapy (CPT).
Method: A trial ran across three German clinics. Researchers randomized 193 women with PTSD following childhood abuse to DBT-PTSD or CPT.
Results: PTSD symptoms improved in both groups, with a small advantage for DBT-PTSD. DBT-PTSD also produced much larger drops in dissociative symptoms specifically.
Conclusion: DBT-PTSD works. It matched or beat an established trauma treatment, even in complex, multiply-traumatized clients.
Do the Benefits Last? The Adolescent Follow-Up
Aim: Mehlum and colleagues (2019) asked a harder question. Do DBT’s short-term benefits for adolescents (DBT-A) persist three years later?
Method: Researchers followed the trial for three years. They reached 92% of the original adolescent participants, an unusually high retention rate.
Results: Mood and suicidal-ideation symptoms no longer differed between groups at three years. However, DBT-A kept a durable advantage in reducing the frequency of self-harm.
Conclusion: DBT-A’s benefit narrowed but did not disappear. Fewer self-harm episodes persisted years later, even where other gains did not.
Are CBT and DBT my Only Options?
CBT and DBT are effective for many people, but they are not the only options. Other approaches may suit a person better.
Some therapies focus more on trauma, relationships, or building on a person’s existing strengths.
For example, acceptance and commitment therapy (ACT) uses acceptance, mindfulness, and personal values to build psychological flexibility. Eye movement desensitization and reprocessing (EMDR) specifically targets trauma and distressing memories.
The relationship between patient and therapist matters too. A strong alliance, and an openness to trying different approaches, can shape outcomes as much as the technique itself.
If CBT or DBT is not the right fit, other options exist. No single therapy works for everyone.
Related Articles
References
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