The relationships among future-oriented moti-vation, self-efficacy, task values of science, and achieve-ment outcomes were investigated among 15-year-oldsacross four Asian nations who participated in the Programfor International Student Assessment (PISA) of the Orga-nization for Economic Cooperation and Development(OECD). The factor structure of theoretical constructs aswell as the causal structure of the expectancy-value modelis found to be invariant across the four countries. Thefuture goals influence the perceptions of value among thevariety of tasks individuals face. Students’ subjective taskvalues predict their science-related activities more stronglythan did their self-efficacy. Self-efficacy is more stronglylinked to competence than is task values in terms of totaleffects. The results extend the expectancy-value theory intoEastern Asian cultur

• Science Motivation Across Asian Countries: Links among Future-Oriented Motivation, Self-Efficacy, Task Values, and AchievementOutcomes