POL101Y1 Lecture Notes - Lecture 6: Score Test, Factor Analysis, Principal Component Analysis
11 Dec 2012
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Reliability and factor analysis types of scales and indexes. Eventually take each individual variable and add together (super variable) Brians et. al don"t really distinguish scales from indexes dimensional. Elements in a broader concept and we are trying to tap into what they are hierarchical. We do things in a particular realm because they are easier to do, then later on we may get more advanced. When put indicators together that may not fit. Education, wealth, class etc. that may be tied but does not have to be a strong tie, they don"t have to go together but we are still interested in their relationship. Ex. just because you"re an immigrant doesn"t mean you"re old though we may still be considering both variables. Different from dimensional because it does not give strong results/ ties like dimensional. Closer to 1, more consistent are indicators, stronger pattern. Every person who gets one right, gets all them right if the score is 1.
