Safety behavior fading for social anxiety: A randomized controlled trial of a self-monitoring intervention.

Safety behaviors (SBs) are hypothesized to play a key role in social anxiety and present as a viable target of psychosocial treatments. While SB reduction is a component of some cognitive-behavioral therapies for social anxiety, prior research suggests safety behavior fading also represents a viable, standalone digital treatment for social anxiety. The aim of the present study was to test a one-month self-monitoring SB treatment in individuals reporting elevated social anxiety symptoms against a credible control condition. Participants (N = 201) were randomized to either a SB fading condition (n = 99) or an unhealthy behavior fading control (n = 102). Compared to control, SB fading led to lower SB use at post but not one-month follow-up. Contrary to predictions, both conditions saw significant and comparable reductions in social anxiety and related outcomes (depression, loneliness) at posttreatment and follow-up. Treatment credibility and expectancy moderated the effect of condition, such that among participants with more positive beliefs about treatment (after being provided with the rationale), those in the SB condition reported significantly lower follow-up social anxiety than those in control. Further, in the SB condition, both higher social interaction frequency and lower loneliness at baseline were predictive of lower social anxiety at follow-up. Overall, our findings show limitations to SB fading as a standalone intervention and suggest this strategy is more effective among those who interact with others more frequently and who are more confident in this treatment approach. We discuss clinical implications and future research directions, including potential refinements to SB treatment protocols.