In a sample of underserved youth, this study examined the relationship between achievement goal theory and affect and attitudes. The study also explored if constructs of Hellison's taking personal and social responsibility (TPSR) model mediated the relationship between goal constructs and the dependent variables. Participants were 135 multiethnic boys and girls (mean age of 11.98 years) attending a physical activity summer camp. Dispositional goals, perceptions of the motivational climate, elements of Hellison's TPSR model, affect, and attitudes were assessed. Hypothesized correlations emerged between goal constructs and affect and attitudes. Path analysis results suggested the data were best fit by a model with TPSR constructs mediating the relationship between goal constructs and the outcome variables. Task orientation and perceptions of a task-involving climate were related to the outcome variables through care for others and/or goal setting and self-responsibility. The conceptual and practical relevance of the findings are discussed.