This paper introduces the need-support model, which proposes that regulatory focus can affect subjective support for the needs proposed by self-determination theory (autonomy, competence, and relatedness) and support of these needs can affect subjective labeling of experiences as promotion-focused and prevention-focused. Three studies tested these hypotheses (N = 2,114).Study 1 found that people recall more need support in promotion-focused experiences than in prevention-focused experiences, and need support in their day yesterday (with no particular regulatory focus) fell in between. Study 2 found that experiences of higher need support were more likely to be labeled as promotion-focused rather than prevention-focused, and that each need accounted for distinct variance in the labeling of experiences. Study 3 varied regulatory focus within a performance task and found that participants in the promotion condition engaged in need-support inflation, whereas participants in the prevention condition engaged in needsupport deflation. Directions for future research are discussed.Keywords: Motivation, regulatory focus theory, self-determination theory, psychological needs NEED-SUPPORT MODEL 3 Foundational tests of the need-support model: A framework for bridging regulatory focus theory and self-determination theory Ferris and Cameron are friends, and Ferris is looking to have a great day -a better day than Cameron is. Although Cameron is not having a bad day, his dad asked him this morning how his college applications are going and mentioned again how important it is for Cameron to get into a top school. Right now, Cameron is feeling less than totally free to do what he wants, less than totally competent, and less than totally close to his dad. But he is still having a pretty good day, and he wants to keep it that way. In contrast, Ferris saw that the morning was beautiful, decided to take the day off, and convinced his parents that he was sick. His parents gave him kisses from across the room before heading off to work. Right now, Ferris is feeling like he can do what he wants, able to take on and master hard challenges, and loved by his parents. He was already having a good day, and now he wants to experience everything great about it -and he wants Cameron to come along. Cameron is currently prevention focused: he wants to maintain the pretty good day he is having. Ferris is currently promotion focused: he wants to gain as many good experiences as he can. Ferris's needs for autonomy, competence and relatedness are also more supported right now than Cameron's are.In general, could support of needs for autonomy, competence, and relatedness be higher in promotion focus than in prevention focus? No current theory explicitly makes this prediction, but it pertains to both regulatory focus theory (Higgins, 1997(Higgins, , 1998 and self-determination theory (Deci & Ryan, 2000). Regulatory focus theory emphasizes differences between promotion focus and prevention focus, whereas self-determination theory emphasizes psyc...