Educational Materials and Image Induction Increase Treatment Credibility

Brief written educational materials of about 300 words significantly increased how credible people found both cognitive behavioral therapy and psilocybin-assisted therapy for depression, with a large effect size. Asking participants to imagine open-mindedness before reading further boosted credibility ratings for psilocybin-assisted therapy, with a medium effect. These simple, low-cost strategies could help improve how patients view treatments. The findings suggest that even short informational texts can shape treatment perceptions, and that priming open-mindedness may be especially useful for newer or less familiar therapies.

Study at a glance

Abstract

Patient-perceived treatment credibility is linked to important outcome measures including symptom reduction, therapeutic alliance, patient satisfaction, and attrition rates. However, few studies have tested strategies to enhance treatment credibility. The present study investigates the effect of brief, written educational materials and the use of an image induction prime on perceptions of credibility for cognitive behavioral therapy and psilocybin-assisted therapy for depression. Participants (N = 493) rated the perceived credibility of depression treatments before and after reading brief educational materials. Half of the participants were asked an image induction question containing the construct of open-mindedness. Results indicate that brief educational materials of about 300 words significantly increased perceived treatment credibility for both therapies, with a large effect size (Cohen's d = .91). The use of an image induction prime further increased perceived credibility for psilocybin-assisted therapy for depression (Cohen's d = .38). These strategies offer an efficient and cost-effective way to enhance treatment credibility. Future studies testing variations of the image induction prime might prove fruitful for optimizing the technique.