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Often political theory is seen as a sub-field of political science. Unlike other sub-fields of political science, political theory does not model its approach to knowledge on the natural sciences. ... Political theory has a focus on somewhat more specific basic or fundamental issues in politics than political philosophy.

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Political theory and Political Science, both are interrelated and supple­mentary to each other. However, some sort of confusion prevails over their interrelationship. According to one view, political theory is a generic term or major category which includes both Political Science and political philosophy. The second view maintains that Political Science is wider, which along with its scientific components, gives proper place both to political philosophy and political theory. Most of the Indian and Asian universities have adopted this view. The third view believes in a value-free Political Science, having no relation with unverifiable values or political theories. Political Science deals with phenomena of control. According to Catlin’s view, Political Science is related to means whereas political philosophy concerns with ends, and, thus, both of them can be subsumed under political theory. In any analysis of politics, means and ends can never be separated from each other.