It was hypothesized that female leaders would elicit more negative nonverbal affect responses from other group members than male leaders offering the same initiatives. Male and female subjects participated in 4-person discussions in which male or female confederates assumed leadership. During the discussion subjects' nonverbal affect responses to the confederates were coded from behind oneway mirrors. Female leaders received more negative affect responses and fewer positive responses than men offering the same suggestions and arguments. Female leaders received more negative than positive responses, in contrast to men, who received at least as many positive as negative responses. The data demonstrate a concrete social mechanism known to cause devaluation of leadership, and thus support a more social interpretation of female leadership evaluations, in contrast to previous interpretations based on private perceptual bias.This study hypothesizes an objective social-situational cue that could account for the devaluation of women's leadership (

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