Written Exposure Therapy
Written Exposure Therapy is a brief trauma treatment developed by Denise Sloan and Brian Marx, manualized in 2019. Its core mechanism: brief written exposure to trauma memory without homework or processing produces habituation and cognitive change (proposed). This catalogue links it to PTSD, typically in individual format, very short (5).
Related condition topics
These links support exploration. They do not establish that Written Exposure Therapy is effective or recommended for each condition.
How Written Exposure Therapy works
Brief written exposure to trauma memory without homework or processing produces habituation and cognitive change (proposed)
Ontology
Same fear structure model as PE; written narrative activates and modifies trauma memory
Therapeutic Voice
"Write about the worst part of it for thirty minutes. Not a report. What you saw, what your body was doing, what you were thinking as it happened."
View of the Person
A narrative being who can process trauma through written confrontation with the memory
Epistemology
Evidence
1 condition assessment available
An overall effectiveness assessment has not been completed. Completed assessments for specific populations appear below.
Condition-specific assessments
Each conclusion applies to the population and use described. These source-based assessments do not certify the full entry or replace expert clinical review.
PTSD & Acute Trauma
Population and scope: Adults with PTSD; individual manualized WET.
Guideline recommendation
VA/DoD 2023 recommendation 9 suggests WET (weak for).
Source assessment dated
Guidelines and official sources (5)
4 clinical guideline checks · 1 professional reference check
Read the recommendation and its scope. A source may discuss an approach without recommending it.
- Clinical Practice Guideline for Management of PTSD and Acute Stress Disorder
Recommendation for the stated population
VA/DoD suggests WET with a weak recommendation. The recommendation does not independently validate numerical outcome claims.
Scope: Adults with PTSD; individual, manualized Written Exposure Therapy.
- Clinical Practice Guideline for Management of PTSD and Acute Stress Disorder
Discussed in the source
VA/DoD suggests co-occurring disorders should not preclude these PTSD treatments. This addresses access to treatment, not a separate claim of treating substance use.
Scope: PTSD with co-occurring substance-use disorder or other disorders; therapies named in recommendations 8 and 9.
- Clinical Practice Guideline for the Treatment of Posttraumatic Stress Disorder in Adults
Insufficient evidence for or against
APA finds insufficient evidence for this efficacy comparison. Its separate comparisons with active treatments reach a different evidentiary finding.
Scope: Adults with PTSD; WET versus waitlist or usual care.
- Clinical Practice Guideline for the Treatment of Posttraumatic Stress Disorder in Adults
Discussed in the source
APA reports no difference in effect and makes no recommendation between these treatments. This is distinct from the insufficient-evidence finding versus waitlist or usual care.
Scope: Adults with PTSD; WET versus CPT, CPT with account, or PE.
- mhGAP evidence profile STR1/STR2: PTSD psychological interventions
Discussed in the source
The evidence profile includes written exposure therapy within individual trauma-focused CBT. STR1 recommends that category conditionally; this is not a separately graded recommendation for written exposure therapy.
Scope: Adults with PTSD.
Recorded material under review
The existing notes below are retained separately from assessment records. These recorded claims await source checking, including study design, recommendations and numerical estimates.
3+ RCTs
Included in PTSD meta-analyses
VA/DoD 2023 suggests WET. Attractive for efficiency.
Training and certification
5-session manualized protocol. Graduate trauma training + manual sufficient
No formal certification
4-8 hrs; manual study
Minimal
Clinical cautions and blind spots
Assessment and precautions
Active psychosis, severe dissociation, clients unable to write or with severe literacy limitations, acute suicidality, clients who require the relational support of verbal trauma processing
Blind spots
Very brief protocol may be insufficient for complex presentations; limited therapist contact compared to PE
Philosophical roots
Same theoretical base as PE (Foa: emotional processing); Pennebaker (expressive writing research); narrative psychology (writing organizes experience)
Compared with other approaches
Test Yourself
How does WET differ from PE?
Show answer
Only 5 writing sessions vs 8-15. No homework, no in-vivo exposure.