Approaches and methods, described above, are general frames of thought They are logical systems employed for studying the State and politics for centuries past. Political Science is a homothetic discipline, i.e. it seeks to discover laws or regularities in political behaviour. That is the reason why the students of Political Science now search for tools and means by which they can measure or quantify the behaviour of the people engaged in some sort of political activities, like voting in general elections or in the legislatures, or to study the attitudes or beliefs which make people to become members of various political parties, etc.<\/p>