https://www.selleckchem.com/pr....oducts/gsk2982772.ht
sing between 1 and 13 persuasive design principles, with an average of 4.95 (SD 2.85). The meta-regressions showed that a greater number of persuasive design principles predicted greater efficacy in ICBT for depression (R change=0.27; B=0.04; P=.02) but not anxiety (R change=0.05; B=0.03; P=.17). These findings show wide variability in the use of persuasive design in unguided ICBT for depression and anxiety and provide preliminary support for the proposition that more persuasively designed interventions are more efficacious, at least