Examining the Intensity and Frequency of Experience of Discrete Positive Emotions

Self-determination theory and the facilitation of intrinsic motivation, social development, and well-being.

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Development and validation of brief measures of positive and negative affect: The PANAS scales.

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Development and validation of brief measures of positive and negative affect: The PANAS scales.

David Watson, Auke Tellegen · Journal of Personality and Social Psychology · 1988 · 31.7K citations

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Self-determination theory and the facilitation of intrinsic motivation, social development, and well-being.

Richard M. Ryan, Edward L. Deci · American Psychologist · 2000 · 27.6K citations

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What Good Are Positive Emotions?

Barbara L. Fredrickson · Review of General Psychology · 1998 · 5.6K citations

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