This study investigated gender disparities in students' science motivational beliefs, conceptualized as self-concept and intrinsic value, from Grades 4 to 8 in 22 countries. The gender-specific relation between science motivational beliefs and achievement was also scrutinized. Data from the 2011 and 2015 national cohorts of the Trends in…

Motivation for an action is determined by the expectation for success and subjective judgment on task values according to the expectancy-value theory. Task values, including intrinsic value, attainment value, utility value, and cost, influence and predict the students' engagement in learning activities and their choices in the future. This study…