Women who collaborate with men on managerial activities undervalue their own roles, says a study released on 7 May (http://doi.org/mh8; 2013). Researchers got 330 students to perform tasks such as making staffing decisions with a simulated partner. Women generally gave male but not female partners more credit than they gave themselves — unless they were told that their own work was crucial or well executed. Women who devalue their contributions could be unlikely to seek out roles such as lead investigator on a large collaboration, says co-author Michelle Haynes, a psychologist at the University of Massachusetts Lowell.and Pers. Soc. Psych. Bull.