Self-Determination Theory: Basic Psychological Needs in Motivation, Development, and Wellness
Self-determination theory (SDT) is an empirically based theory of human motivation, development, and wellness. The theory focuses on types, rather than just amount, of motivation, paying particular attention to autonomous motivation, controlled motivation, and amotivation as predictors of performance, relational, and well-being outcomes. It also addresses the social conditions that enhance versus diminish these types of motivation, proposing and finding that the degrees to which basic psychological needs for autonomy, competence, and relatedness are supported versus thwarted affect both the type and strength of motivation. SDT also examines people’s life goals or aspirations, showing differential relations of intrinsic versus extrinsic life goals to performance and psychological health. In this introduction we also briefly discuss recent developments within SDT concerning mindfulness and vitality, and highlight the applicability of SDT within applied domains, including work, relationships, parenting, education, virtual environments, sport, sustainability, health care, and psychotherapy.
Appraising and Amending Theories: The Strategy of Lakatosian Defense and Two Principles that Warrant It
In social science, everything is somewhat correlated with everything (“crud factor”), so whether H0 is refuted depends solely on statistical power. In psychology, the directional counternull of interest, H*, is not equivalent to the substantive theory T, there being many plausible alternative explanations of a mere directional trend (weak use of significance tests). Testing against a predicted point value (the strong use of significant tests) can discorroborate T by refuting H*. If used thus to abandon T forthwith, it is too strong, not allowing for theoretical verisimilitude as distinguished from truth. Defense and amendment of an apparently falsified T are appropriate strategies only when T has accumulated a good track record (“money in the bank”) by making successful or near-miss predictions of low prior probability (Salmon’s “damn strange coincidences”). Two rough indexes are proposed for numerifying the track record, by considering jointly how intolerant (risky) and how close (accurate) are its predictions.
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