Abstract
This paper attempts to explicate and test the assumptions underlying typologies of legislative behavior. Quantitative data on a wide range of behaviors of 150 House members are used to produce a typology of styles of congressional behavior and to test two related theories of congressional behavior. Cluster analylsis reveals four distinct types of representatives: (1) activists, who are fairly extreme ideologically, highly active and highly visible, (2) backbenchers, who are inactive across all dimensions of behavior sampled here, (3) ingratiators, who are highly constituency-oriented, active in the solicitation and exploitation of casework, and very moderate ideologically, and (4) ideologues, who are moderate in their general level of activism, and rather extreme ideologically. Individual electoral threat is a weak determinant of the style a representative will adopt. Years of seniority within the institution and the political culture of the home district have major effects.