Praxical.Psych
Assessment

Behavioural chain analysis

Reconstruct a problem episode link by link so that solutions can be inserted at specific points.

After a self-harm, crisis, or target-behaviour episode — a standard weekly practice in DBT.13 fieldsDialectical Behavior Therapy

How this document is used well

A chain analysis is deliberately, almost tediously granular. The therapeutic value is not in the finished diagram but in the slowing down: a patient who has experienced an episode as one undifferentiated collapse discovers it had fourteen links, several of which had exits.

Then do the solution analysis

A chain without a solution analysis is half the intervention. Pick two or three links, generate alternative responses for each, rehearse them in session, and troubleshoot what would stop the patient from using them.

Complete it

Nothing you type leaves this browser. Do not enter real patient information.

Shows why each item is asked
The target behaviour
The links
Links in the chain

Add one link per step: thought, feeling, sensation, action, or event. Aim for more links than feels necessary.

Consequences
Solution analysis
Rehearsed in session?

Unrehearsed solutions rarely survive contact with the next crisis.

5 required fields outstanding: Precisely what did you do?; Prompting event — the moment it started; Immediate consequences — internal and external …

Educational use only

Praxical.Psych is a teaching tool. It is not medical, clinical, psychological or legal advice, not a diagnosis, not treatment, not supervision, and not a credential. Nothing here creates a clinician–patient or solicitor–client relationship. Every patient, case, transcript and simulated session is fictional. Clinical and legal requirements vary by jurisdiction and change over time — verify anything that bears on a real decision against your own regulator, statute and current professional guidance, and consult a qualified professional.

Do not enter real patient information. If you or someone else is in crisis: US & Canada 988 · UK & Ireland 116 123 · Australia 13 11 14 · elsewhere findahelpline.com · immediate danger, your local emergency number.

Full disclaimerScope, method & limitsEthics & lawYour data

Praxical.Psych · © 2026 Moonlit Social Labs. All rights reserved.

Before you begin

What Praxical.Psych is, and is not

Praxical.Psych is an educational tool. It teaches the theory, evidence base and clinical method of psychotherapy at the level of an advanced survey course, and it lets you rehearse a complete session in a simulator.

It is not medical, clinical, psychological or legal advice. It cannot diagnose or treat anyone, and it does not state the law where you practise — requirements differ by jurisdiction and change. Nothing here creates a clinician–patient or solicitor–client relationship.

  • Every patient, transcript and case in this app is fictional — a composite written for teaching. None depicts a real person.
  • Praxical.Psych is not therapy, not a substitute for supervision, and not a credential. Competence to practise comes from training, supervised hours and licensure.
  • Scores from the instruments here are for learning how they behave. They are not a diagnosis and not a risk assessment, and must not inform a decision about a real person.
  • Do not enter real patient information. Everything you type stays in this browser, but that is not the same as a compliant clinical record system.
If you are in crisis

In the US and Canada, call or text 988. In the UK and Ireland, call 116 123 (Samaritans). Elsewhere, find a local line at findahelpline.com. In immediate danger, use your local emergency number.

Read the full disclaimer