Resumen
Most of the Sport Education model’ nonnegotiable features have been explored. Research focusedon roles (e.g., student-coach) has examined its specific learning processes, but there is scant evidence about itsrotation/non-rotation dynamics. Applying the Sport Education model, this study assesses the impact ofroles’ dynamics (permanent or rotation) on adolescents’ motivational variables (achievement goals, basicpsychological needs and motivational regulations) and friendship goals, in a socially vulnerable context. Aquasi-experimental, simple crossover design with repeated measures (PreT-Post1-Post2) is carried out. Following SportEducation features, two invasion games-units (12 lessons each; basketball and floorball, respectively) were applied.96 students (boys, n = 53, Mage = 12.13; SD = .79; girls, n = 43, Mage = 12.23; SD = .87) belonged to five intact groups ingrade 7 from a high-school take part in this study. These groups are distributed on two experimental groups (GE-1,n = 43; an...