Materialism
Materialism posits the epistemological primacy of matter over ideas, mind, values, spirit, and other incorporeal phenomena. Philosophical perspectives stressing the fundamental importance of physical conditions and needs have grown more elaborate with the increasing differentiation and autonomy of secular knowledge from religion. Materialists oppose magical, religious, and metaphysical explanations of worldly affairs, criticizing their role as mystifications and socioeconomic or political legitimations. The enduring debate over materialism and idealism (which gives primacy to ideas) centers on the two approaches' relative effectiveness as guides to scientific, technical, and sociopolitical practices. In social science, materialism refers to often tacit metatheories, or heuristic devices, which frame distinctive types of research problems, hypotheses, concepts, and theories stressing the causal force of physical realities on sociocultural matters.
Two contrasting threads of the materialist tradition have divergent consequences for the behavioral and social sciences. Reductionists posit that phenomena are determined strictly by physical causes. Their view that existential knowledge is a reflection of corporeal conditions denies the autonomy of psychological and sociocultural factors and, thus, suggests that the behavioral and social sciences have no distinct content. Nonreductionists hold that psychological and sociocultural phenomena arise from and are dependent upon physical substrata. They also accord "primacy" to physical realities and corporeal impulses, motives, values, representations, and interests, seeing them as basic constraints that "determine," or channel, the direction of human practices.
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