AbstractThis paper analyzes gender differences in student performance in Multiple-Choice Tests (MCT). We report evidence from a field experiment suggesting that, when MCT use a correction for guessing formula to obtain test scores, on average women tend to omit more items, get less correct answers and lower grades than men. We find that the gender difference in average test scores is concentrated at the upper tail of the distribution of scores. In addition, gender differences strongly depend on the framing of the scoring rule.