This article examines the effects of participant gender, researcher ge
nder, and group gender composition (ratio of women to men) on individu
al judgments about an ambiguous, hypothetical, sexual harassment griev
ance. The participants(116 men and 113 women) served on five-person mo
ck hearing boards. A main effect for participant gender was found (p<.
01), with significantly more women (58.4%) making affirmative sexual h
arassment judgments than men (35.3%). A significant three-way interact
ion (p<.01) revealed that, when led by male researchers, men in groups
where they were the numerical minority (3 women/2 men) made significa
ntly lower ratings, indicating less bel ief that sexual harassment had
occurred (M = 2.83), than those men in groups where they were in the
majority (2 women/3 men, M=4.87; 4 men/1 woman, M = 4.88). Ingroup and
outgroup behavior observed by Rogers, Hennigan Bowman, and Miller (19
84) is proposed as a possible explanation for these results.