RESULTS	Among intervention completers ( n = 903 ) , chi-square analyses showed that , compared to the standard intervention , those receiving the motivationally tailored intervention were significantly more likely to show increases ( 37 % vs. 27 % ) and less likely to show either no change ( 52 % vs. 58 % ) or regression ( 11 % vs. 15 % ) in stage of motivational readiness .\