This article aims to reflect on the formation and change of attitudes, articulating the main theoretical models arising from Social Psychology. Based on the threedimensional conception of attitude—composed of the cognitive, affective, and behavioral dimensions – it discusses how each of these components can be mobilized to promote inclusive perceptions and behaviors, always culminating in the context of the inclusion of people with disabilities through Physical Activity and Sports. In the cognitive domain, the persuasion and immunization models stand out, highlighting the role of knowledge and information in restructuring beliefs. At the affective level, the mere exposure effect, contact theory, and evaluative and vicarious conditioning are discussed as strategies to reduce prejudice and strengthen empathy. Finally, drawing on the theories of cognitive dissonance and self-perception, the role of behavior as a catalyst for attitudinal change is emphasized. We argue that physical activity and sport constitute privileged contexts for the practical integration of these dimensions, promoting meaningful contact, recognition of diversity, and the transformation of social representations of disability. We conclude that changing attitudes requires systemic, multidimensional, and sustained interventions capable of articulating information, emotion, and action toward an inclusive culture.