Participants within each block were randomly assigned to the ( 1 ) Experimental Group ( EG ) : n = 40 ; B1 = 20 , B2 = 20 , which received a 5-week treatment based on the Interreality paradigm ; ( 2 ) Control Group ( CG ) : n = 42 ; B1 = 22 , B2 = 20 , which received a 5-week traditional stress management training based on cognitive behavioral therapy ( CBT ) ; and ( 3 ) the Wait-List group ( WL ) : n = 39 , B1 = 19 , B2 = 20 , which was reassessed and compared with the two other groups 5 weeks after the initial evaluation .