Previous research on the correlates of power motivation in women and men had shown no gender differences, when the presence of younger siblings (reflecting responsibility training) was used as a moderator variable This study reports development of an empirically denved direct TAT measure of responsibihtv as a moderator variable for the power motive The new measure includes mention of legal or moral standards, obligation concern about others, concern about consequences, and self-judgment It is related to perceived parental expectations concerning responsibihtv Among women and men high in responsibility, power motivation predicts responsible social power actions, but among women and men low in responsibility, power motivation predicts a variety of profligate, impulsive actions Responsibility then, rather than gender, appears to determine the ways in which the power motive is expressed Themes of power and responsibility are at the heart of both the realities and the myths about gender differences and gender relationships Although there are variations over time and across societies, men generally have higher status and more power than do women, and women are often seen as more responsible than are men (see Sanday, 1981, Stewart & Winter, 1977, Whiting & Whiting, 1975 Such power as women do have, moreover, is often circumscribed and restricted on account of their special "responsibihties" (see Gorer, 1948) Perhaps because ofthese realities, the topics of power, responsibility, and gender are wrapped m a rich mvthologv One myth is that men are interested in getting power or motivated to seek power, while women are not Another myth is that men and women differ m their styles of seeking and exercising power Men,We are grateful to