Sexism is known to cause detrimental effects, but in Indonesia, there are still few interventions for the problem. This experimental study was aimed to find out whether information giving, in the form of video, about psychological similarities between gender could decrease perceived psychological differences in college students. The Wilcoxon test showed the average score of perceived psychological gender difference questionnaires posttest was significantly lower than the pretest. Then, the same video was given to determine whether information giving about psychological similarities between gender could reduce sexism in college students. The sample in this study was divided into two groups, experimental and control. This study used the Indonesian adapted version of Ambivalent Sexism Inventory (ASI) measuring instrument. The one-tailed Mann-Whitney test showed that the average difference of ASI score between the experimental group was significantly greater than the control group. However, the 2x2 between subject ANOVA showed that this only held true for male participants. Thus, it can be concluded that information giving, in the form of video, about psychological similarities between gender decreased sexism in college male students.
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