Large-group one-session treatment: Feasibility and efficacy in 138 individuals with phobic fear of flying.

Recent research suggests that exposure-based large-group one-session treatments (LG-OSTs) may represent useful and efficient treatment options for different types of phobic fear. Although there are effective single session- and small group-interventions for the treatment of clinically relevant Fear of Flying (FoF), no LG-OST for this type of phobic fear has been realized so far. The present study aimed to investigate feasibility and efficacy of an LG-OST for the treatment of clinically relevant FoF.