This document discusses three main research paradigms: positivism, anti-positivism (interpretivism), and critical theory. Positivism takes a naturalistic and objective approach to knowledge through observation and quantification. Anti-positivism sees knowledge as subjective and socially constructed. Critical theory examines how historical forces restrict freedom and uncover ideological justifications. The document outlines key characteristics of each paradigm such as their views on ontology, epistemology, methodology, and strengths/weaknesses.