JH
Jonathan Haber
Marsha Linehan — DBT

What are the DBT interpersonal effectiveness skills and how do you use them?

DEAR MAN, GIVE, and FAST: the three-way skill set for relationships under pressure

Short answer

Dialectical Behavior Therapy’s interpersonal effectiveness module gives concrete skills for asking for what you need, saying no, and managing conflict — without sacrificing either your objectives or the relationship. The DEAR MAN, GIVE, and FAST acronyms operationalize three distinct goals (getting results, keeping the relationship, keeping self-respect) that often pull in different directions. DBT as a whole has strong RCT evidence; the interpersonal module is integral to that evidence base.

Most people handle interpersonal tension with one of two failing strategies: say nothing (and build resentment) or say everything (and damage the relationship). Marsha Linehan’s DBT interpersonal effectiveness skills identify three distinct goals in any interpersonal moment — objective (what you want), relationship (connection with the other person), and self-respect (how you feel about yourself afterward) — and give a specific tool for each. Below are the core practices, with the mechanism that makes each one work.

The practices (7)

Why it works

Most failed requests fail for one of two reasons: they are unclear about what is being asked, or they are delivered in a way that provokes defensiveness. DEAR MAN separates content (describing the situation and making an explicit ask) from delivery (maintaining focus, projecting confidence, staying flexible). The structure keeps emotion from hijacking the request before it is heard.

How to do it
  1. 1Describe the situation factually, without blame: "Last night the dishes were left out."
  2. 2Express your feeling using "I" language: "I feel frustrated when the kitchen isn’t cleaned up."
  3. 3Assert the specific request clearly: "I’m asking you to clean up after cooking."
  4. 4Reinforce by naming what the other person gains: "It would help me feel less stressed at home."
  5. 5Stay Mindful (return to the ask if the conversation drifts), Appear confident (keep eye contact, steady voice), and Negotiate (offer a partial solution if full agreement is out of reach).
Evidence
RCT / meta-analysis

DBT as a whole has multiple RCTs supporting its efficacy; interpersonal effectiveness is a core module. Assertiveness training (the closest independently studied analog) has consistent evidence for improving interpersonal outcomes.

Honest caveat: The RCT evidence is for DBT as a package; DEAR MAN specifically has not been isolated in its own trial separate from the full skill set.

  • — Linehan et al. (2006), Two-year randomized controlled trial of DBT, Archives of General Psychiatry
Common mistake: Skipping the Reinforce step — which transforms the request from a demand into an exchange the other person has a reason to agree to.
Go deeper on this practice →

Practice this with IX Coach

Reading about a practice changes nothing on its own. IX Coach turns these into a guided, adaptive routine — discerning where you are in real time and walking the practice with you, session after session.

Start with IX Coach →

Related practices