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In R. M. Ryan (Ed.), Causes, costs, and caveats: Reflections, and future directions for goal contents theory.
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Goal contents theory: Aspirations, life goals, and their varied consequences.
Guilford Press Self-determination theory: Basic psychological needs in motivation, development, and wellness, ,272-292
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The path taken: Consequences of attaining intrinsic and extrinsic aspirations in post-college life.
Journal of Research in Personality, 43 ,291-306
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Further examining the American dream: Differential correlates of intrinsic and extrinsic goals.
Personality and Social Psychology Bulletin, 22(3) ,280-287