Traditionally, the Netherlands lag behind other countries in terms of the percentage of girls opting for STEM-study programs [1-2]. The underrepresentation of girls cannot be attributed to differences in performance in STEM related school subjects or skills: girls perform equally well as boys [3], and this is also the case in the Netherlands [2]. In international research a number of factors leading to the under-representation of girls/women in STEM have been recognized, including girls’ lower self-concepts, nonstimulating learning environments, lack of female role models, stereotyped associations