This text investigates the fundamental question of how learning is defined, measured, and theorized within the context of psychological research. Author Matthew H. Olson provides a comprehensive overview of the field, synthesizing a century of academic inquiry into the mechanisms of behavioral and cognitive acquisition. The book utilizes a historical framework to contextualize major theories, offering students and practitioners a structured approach to understanding the evolution of educational psychology.

The text is regarded as a standard, accessible introduction for students navigating the complexities of educational psychology and learning theory. Its focus on historical context and clear synthesis of research makes it a reliable resource for those seeking a foundational understanding of the field.