Lack of autonomy and self-control: Performance contingent rewards lead to greater depletion

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.

David Watson, Lee Anna Clark, Auke Tellegen · Journal of Personality and Social Psychology · 1988 · 32.1K citations

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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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Manual for the State-Trait Anxiety Inventory

Charles D. Spielberger, Richard L. Gorsuch, Robert E. Lushene · 1970 · 25.4K citations

Social Sciences, Behavioral Sciences, Psychology +14