What are the eight principles of Behavioural approach is known as?

The Eight Pillars of Behaviouralism in Political Science

David Easton, a towering figure in political science, famously outlined eight defining principles of the behavioural approach—a movement that transformed how scholars study politics. Rather than focusing solely on institutions and legal structures, behaviouralism shifted attention to what people actually do in political life, emphasizing observable behaviour and systematic analysis.

First among these principles is regularities—the idea that political actions follow patterns that can be identified and studied. This leads naturally to verification, where theories must be tested against real-world evidence. To support this, Easton highlighted the importance of reliable techniques and precise quantification, pushing the field toward more rigorous, data-driven methods.

Another key feature is the conscious treatment of values. Behaviouralists don’t ignore values, but they insist on separating factual analysis from personal or ideological bias. This pursuit of objectivity supports pure science, aiming to build general laws of political behaviour, much like in the natural sciences.

Easton also stressed systematisation—the need for theories to be coherent, cumulative, and logically structured. Rather than isolated studies, behaviouralism seeks interconnected knowledge that builds over time. Finally, integration calls for unifying political science with insights from sociology, psychology, and economics, breaking down academic silos.

Together, these eight principles reshaped political inquiry in the 20th century, pushing the discipline toward greater scientific rigour. While later approaches have critiqued aspects of behaviouralism, its influence endures in how researchers design studies, analyze data, and strive for objectivity. Easton’s framework remains a cornerstone for understanding the evolution of modern political science.