MEN IN STRAIGHTJACKETS: LEAN IN V. LEAN OUT BACKGROUND In the wake of Sheryl Sandberg’s revolutionary book, Lean In, women and men alike were motivated to engage in healthy dialogue concerning gender-based challenges in the workplace. The book espoused, among many other beliefs, the idea that women were not merely restrained by their male counterparts but by themselves, through their subconscious suppression of ambition and their disinclination to market and credit themselves as compared to men (Sandberg, 2013). Sandberg’s anthem to gender equality prompted a nationwide “Lean In” movement, engendering a more conscious effort on the part of women to make their voices and ideas heard in the workplace. Along the same vein of thought, many called for men to “lean out” from their workdominated lives, involving themselves in the quest to close the ostensible gender gap between the work and the home (Winkler, 2015). In our study, we examine both behaviors – female “lean in” and male “lean out” – in a controlled experimental group setting. We aim to test the hypothesis that asking men to lean out is more effective in optimizing group dynamics than asking women to lean in. We believe this to be true due to two major reasons. First, women who are perceived as overly assertive (by other women) may face more backlash than men who fail to be perceived as assertive. Second, this backlash may stem from male aggression. In the face of women who project their confidence and assertiveness, some men may feel somewhat emasculated and strive to show their dominance even more (by interrupting women more, raising their voice, etc.) In order to test our hypothesis, we plan to run a study in the context of a hidden profile task. In such a task, members of a group are each given information (both shared and unshared) that they use to reach a decision after group discussion. The unique characteristic of a hidden 1