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Ethics of Feedback: The APA's code of ethics (2010) as well as the Advisory Group on Conducting Research on the Internet (AGCRI) report (2004) summarize ethical issues related to conducting offline and online psychological research. Feedback is normal in psychological experiments, and researchers are encouraged to debrief participants, before, immediately ...


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I feel that there is a misnomer here... a reward is a reward. There are Intrinsic and Extrinsic Motivators. Intrinsic - The feel good motivation you get from within for accomplishing of completing a task. Because it felt good, you want to do more. This could be classified as a reward, but generally speaking an emotional response isn't necessarily a reward. ...


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The Enneagram model of personality (Riso and Hudson, 1999) has limited and mixed scientific evidence supporting it. One of the few studies reporting on the model's validity (Newgent et al., 2004) concluded the following in their abstract. Results of 287 participants were analyzed. Alpha suggests an adequate degree of internal consistency. Evidence ...


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David Markland's website has several related questionnaires and scales that are available for research use. The Behavioural Regulation in Exercise Questionnaire seems like a good fit: The Behavioural Regulation in Exercise Questionnaire (BREQ) measures different forms of motivation for exercise based on Deci and Ryan's (1985, 1991) continuum conception ...


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No. An association between overweight and procrastination appears to have no direct empirical support to speak of. The most direct evidence I can find on the matter was a study into industrial workplace productivity's association with overweight, which found a very small (approximately 1%) loss in productivity over other workers associated with moderate or ...


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Short answer is YES, at least for rats, who do have chemosensors in their brain and alter their liking of salty foods and foods containing certain amino acids. See this question and question on Biology.SE: Do humans have chemosensors for nutrients or chemicals? Do omnivore mammals vary food preferences based on dietary needs?


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I think this question may be better asked at biology.SE. I have to cite popular science press here, but nevertheless, clearly the answer seems to be: no. Scientific American: Peter Pressman of the Cedars Sinai Medical Center in Beverly Hills, Calif. and Roger Clemens of the University of Southern California School of Pharmacy explain. Food craving, ...



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