Our findings indicate that sex and gender-orientation should be taken into account in prevention and intervention protocols at colleges and universities. Future work should examine the role of gender orientation among LGBTQ and ethno-racial minority populations.

BACKGROUND Although expectancy-value models of motivation have been applied to understanding children’s physical activity in a variety of contexts, the construct of cost has received relatively less attention. In the present study, perceived cost for engaging in mandatory physical education (P.E.) classes is explored. In particular, we examine different dimensions to cost as well as how cost may be related to children’s competence beliefs and values, perceived autonomy-support, and P.E. engagement. METHODS Two hundred fifty-eight fifth-graders were surveyed in their P.E. classes. Children responded to items assessing cost, competence beliefs, intrinsic value, and attainment value for P.E., as well as perceived autonomy-support of the P.E. teacher. RESULTS Two distinct types of cost were identified through factor analysis: personal discomfort cost and social cost. Personal discomfort cost was negatively related to competence beliefs and values, engagement in P.E., and perceived autonomy-support. CONCLUSIONS Perceived cost appears to be a useful way to understand why some children may be less engaged in P.E. classes. P.E. teachers may be able to mitigate cost by engaging in tactics that are autonomy-supportive in nature, such as providing children with choices and rationales for activities.