Efficacy and plausibility of CR and OLP
The mlmANOVA indicated significant main effects of GROUP (F(1,97) = 42.45, Ratings for the plausibility of the treatment rationale differed between the two groups with a higher value in the CR group (M = 7.68, SD = 1.29) compared to the OLP group (M = 6.32, SD = 2.26, t(98) = -3.70, The percentages of participants who gave efficacy/plausibility ratings for the interventions at medium or higher levels (≥ 5; center of the scale) were as follows: expected efficacy: 70% (OLP) versus 92% (CR), perceived efficacy: 49% (OLP) versus 90% (CR); plausibility: 72% (OLP) versus 98% (CR).