Core Evidence and Research

There is a wealth of evidence supporting the effectiveness of DBT. The first randomized controlled trial (RCT) of DBT was published in 1991, in which Dr. Marsha Linehan and her colleagues found that DBT resulted in significant improvements for chronically suicidal and self-injuring women with borderline personality disorder, a clinical population that had previously been viewed as untreatable (Linehan et al., 1991).

In the decades since this landmark study, DBT has been extensively researched for individuals with a wide range of mental health conditions receiving treatment in diverse practice settings around the world.

Understanding Research Related to DBT

There are multiple research domains for DBT studies, including:

  • Efficacy Trials: Efficacy research is aimed at understanding whether an intervention produces the expected results under ideal circumstances. Control over these circumstances protects the internal validity of the study. Most efficacy trials of DBT were completed in academic research settings. The efficacy studies listed below are randomized controlled trials (RCTs). For a summary that includes other types of efficacy studies (e.g., quasi-experimental studies), please refer to the Non-RCT Research Data.
  • Effectiveness Trials: Effectiveness research is aimed at measuring the degree of “beneficial effect” in a real-world setting. These studies focus on external validity or how well the results can be expected to generalize to other settings. Effectiveness trials of DBT are most often completed in community practice settings. The list below only includes randomized controlled trials (RCTs). For a summary that includes other types of effectiveness studies (e.g., quasi-experimental studies), please refer to Non-RCT Research Data.
  • Dissemination & Implementation: Dissemination research is the systematic study of how to distribute information and intervention materials to a specific audience to increase knowledge and use of evidence-based interventions. Implementation research is the systematic study of methods of promoting the adoption and integration of evidence-based interventions into routine clinical practice settings. This type of research uses multiple disciplines and methods. Implementation research focuses on practical approaches to increase the use of evidence-based interventions and enhance equity, efficiency, and sustainability.
  • Mechanisms of Action: Research evaluating mechanisms of action aims to identify the variables or processes through which a treatment produces a change in desired outcomes. Research evaluating predictors of outcome aims to identify variables that are associated with better or worse treatment outcomes.
  • Meta-Analyses & Systematic Reviews: Systematic reviews provide a comprehensive review of the literature based on systematic searches of relevant research databases. Meta-analyses combine data from multiple studies to evaluate treatment effects across studies.

Click here for our list of References for DBT Foundational and Intensive Training.

RCT and Non-RCT Summaries

Click below for archived, printable summaries of RCT and non-RCT studies. In treatment research, a randomized controlled trial is a study in which patients or clients are randomized to one of two groups: the intervention being evaluated and an alternative treatment.


Archived DBT Treatment Research from Behavioral Tech:

January 2017February 2018January – March 2019
March 2017March 2018April – May 2019
June 2017April-May 2018June 2019
October 2017June 2018July 2019
December 2017July 2018August 2019
August-September 2018
October 2018
November-December 2018
Click the links above to find archived research data from Behavioral Tech

The Scientific Committee of the International Association for Dialectical Behavior Therapy (IADBT) will have an online, up-to-date and trustworthy overview of DBT-RCT’s that contains information about the study, including an overview of the study population, DBT treatments, modules, techniques that were studied, the design that was used, concepts and measurements, participants flow, and key demographics. It will contain all the relevant information about the trials, except for the results themselves. We will add a link to this page here when it is available.

A Skills Deficit Model

DBT is built on the premise that many of the problems exhibited by clients are caused by skills deficits. In particular, the failure to use effective behavior when it is needed is often a result of not knowing skillful behavior or when or how to use it. For example, deficits in emotion regulation skills are believed to be a core problem in individuals with borderline personality disorder, and these deficits result in the use of maladaptive behaviors to regulate emotions (e.g., suicide attempts, non-suicidal self-injury, substance use). Therefore, a key focus in DBT is to improve clients’ ability to use skillful behavior when needed, with a particular focus on learning effective emotion regulation strategies.​

Full-model DBT is still the standard of treatment for highly suicidal clients, as it has the preponderance of evidence. Even clients in skills-only studies generally received intensive case management that served some of the functions of individual therapy.

​However, consistent with this skills deficit model, use of DBT skills has been found to fully or partially explain improvements during standard DBT and DBT skills training in problems such as suicidal behavior, non-suicidal self-injury, depression, anger control, emotion dysregulation, and anxiety (Neacsiu et al., 2010; Neacsiu et al., 2014). In addition, improvements in emotion regulation (Axelrod et al., 2011), experiential avoidance (Berking et al., 2009), and assertive anger (Kramer et al., 2015) have been found to account for changes in outcomes such as substance use, depression, and social functioning during DBT. Taken together, these findings suggest that DBT works because it successfully increases clients’ ability to use effective coping skills, particularly strategies for expressing, experiencing, and regulating intense emotions.​

DBT as an Effective Treatment ​

Although the strongest evidence exists for DBT as a treatment for people with borderline personality disorder, DBT has been found to be effective for a wide variety of mental health conditions. Conditions for which standard or adapted versions of DBT have been found to be effective in at least one randomized controlled trial are listed below. ​

DBT has been evaluated and found to be effective among individuals from diverse backgrounds in terms of age, gender, sexual orientation, and race/ethnicity. The demographic groups listed below have made up a sizeable proportion (25-100%) of the sample in at least one study of DBT. ​

Although DBT was originally developed and researched in the United States, it has since been evaluated in many randomized controlled trials (RCTs) conducted in other countries, including: ​

​These international RCTs have found that DBT is effective when implemented in other cultures and results are similar to those found in studies conducted in the United States.