So sánh phương pháp

	Political Ideology Scaling	Ideological Constraint Analysis
Lĩnh vực	Tâm lý học chính trị	Tâm lý học chính trị
Họ	Latent structure	Latent structure
Năm ra đời	1985	1964
Người khởi xướng	Keith Poole & Howard Rosenthal	Philip E. Converse
Loại	Latent ideal-point model	Belief-system structure analysis
Công trình gốc	Poole, K. T., & Rosenthal, H. (1985). A spatial model for legislative roll call analysis. American Journal of Political Science, 29(2), 357-384.	Converse, P. E. (1964). The nature of belief systems in mass publics. In D. E. Apter (Ed.), Ideology and Discontent (pp. 206-261). New York: Free Press. ISBN: 9780029006702
Tên gọi khác	NOMINATE, Ideal Point Estimation, IRT Ideology Scaling, Spatial Voting Scaling	Belief System Constraint, Attitude Constraint Analysis, Issue Consistency Analysis
Liên quan	4	4
Tóm tắt	Political ideology scaling estimates actors' positions on one or more latent ideological dimensions from their observed choices, most often legislators' roll-call votes, but also survey responses and donations. The dominant methods are Poole and Rosenthal's NOMINATE (1985) and the Bayesian item-response-theory (IRT) approach of Clinton, Jackman and Rivers (2004), which place legislators and the proposals they vote on in a common spatial map.	Ideological constraint analysis measures the degree to which an individual's or a public's political attitudes hang together in a coherent, predictable structure, the extent to which knowing a person's position on one issue lets you predict their positions on others. Introduced by Converse (1964) as the defining feature of a belief system, it is assessed through inter-item correlations, factor/latent-dimension models, and constraint indices.