%0 Journal Article %T Intrinsic and extrinsic motivation from a self-determination theory perspective: Definitions, theory, practices, and future directions %A Ryan, Richard M. %A Deci, Edward L. %A , %J Contemporary Educational Psychology %V 61 %P 101860 %@ 0361-476X %D 2020-04-01 %I Elsevier BV %~ DeepDyve