If I understand the question correctly, this question refers to participation in terms of voting patterns? This question could lead you in many different directions. Voting demographics are always an interesting topic for debate in this area. The Electoral College map will give some ideas as to how the areas in which we live may shape our values and votes. You will find that more rural areas tend to vote republican where as urban and metropolitan areas tend to vote democratic. It is interesting to examine that relationship and the sociological factors associated with that trend.