Analysis
To determine sample size, we estimated an effect size of a 5-percentage point increase in the probability to control an urge in the EFT and Compassion groups, and assumed that participants would indicate they had an urge 3 times a day. We identified that 95% power, under these assumptions, could be achieved by collecting data from 90 participants. The power analysis is publicly available.The intensity of urges was modelled using a cumulative link mixed model (CLMM) with a logit link, using the ‘ordinal’ R package [The type of urge was not included as a predictor in the main preregistered models, but it was specified in the exploratory analyses section and because the effects of the intervention might differ across domains, we decided to include it in the main analyses. In both analyses, we decided to deviate from the preregistration by including interaction terms between the type of urge and the intervention because we deemed it likely that the intervention might affect some urges more than others. The preregistration also specified the use of a linear mixed model, but due to the ordinal nature of the response variable, we deviated from this plan and conducted the analysis using a CLMM.We used a binomial generalised linear mixed model (GLMM) to conduct the self-control analysis. In addition to the variables in the model above, vaccine hesitancy, vaccine effectiveness beliefs, back-to-normal timeline predictions, and whether participants attempted to resist the urge were included. The analysis was conducted using the ‘afex’ package [A false discovery rate adjusted alpha of 0.05 was used to determine whether the effects based on the CLMM or on the GLMM were significantly different from those expected if the null hypothesis were correct. The ‘emmeans’ package [Our analyses were preregistered, data and analysis are available [