RESULTS	Compared to the SR group , the INT group reported more favorable changes in instrumental attitude ( mean difference = 0.13 ; 95 % CI = -0.01 to 0.23 ; d = 0.19 ; p = 0.077 ) , intention ( mean difference = 0.33 ; 95 % CI = 0.10 to 0.56 ; d = 0.33 ; p = 0.006 ) , and planning ( mean difference = 0.39 ; 95 % CI = 0.04 to 0.73 ; d = 0.26 ; p = 0.027 ) .\