A Randomized Controlled Trial (RCT) found that the SASA! intervention had a significant impact on attitudes and behaviors, reducing social acceptance of gender inequality and intimate partner violence and decreasing the actual experience of this type of violence [1].
Both men and women reported lower social acceptance of intimate partner violence, although the result was statistically significant only for women. There was also, among both women and men, significantly greater acceptance of the idea that a woman can refuse sex.
Compared to women in the control group, there was a 52% reduction in episodes of physical violence by a partner and a smaller, statistically non-significant decrease in episodes of sexual violence.