Does Validity Measure Response Affect CPT Group Outcomes in Veterans with PTSD?

Area of Science:

• Psychiatry
• Psychology
• Veterans Affairs

Background:

• Research on pre-treatment assessment effort and symptom exaggeration in Veterans with PTSD is limited.
• Symptom exaggeration may indicate higher PTSD and depressive symptoms and is sometimes seen as a "cry for help."
• Resilience is a key factor in PTSD treatment response.

Purpose of the Study:

• To examine the impact of assessment effort and symptom exaggeration on treatment outcomes in Veterans with PTSD.
• To determine if poor assessment effort and symptom exaggeration compromise psychotherapy outcomes.
• To investigate the role of resilience in the relationship between symptom exaggeration and treatment response.

Main Methods:

• Sixty-one OEF/OIF/OND-era Veterans diagnosed with PTSD were recruited.
• Participants self-selected into cognitive processing therapy (CPT) or treatment-as-usual.
• Assessment of effort, symptom exaggeration, PTSD, depressive symptoms, and resilience was conducted pre- and post-treatment.

Main Results:

• Veterans with poor assessment effort and symptom exaggeration had higher pre-treatment PTSD and depressive symptoms and lower resilience.
• No significant differences in post-treatment PTSD or depressive symptoms were found between good and failed effort groups.
• Resilience remained lower in the failed effort group post-treatment.

Conclusions:

• Poor pre-treatment assessment effort and symptom exaggeration in Veterans with PTSD do not necessarily predict poor treatment outcomes or completion.
• Veterans with poor effort may still benefit from CPT at rates comparable to those with good effort.
• Findings challenge the assumption that effort validity testing alone predicts psychotherapy response in Veterans with PTSD.