PSYC 2360 Lecture Notes - Structural Equation Modeling, Coefficient Of Determination, Theory Of Reasoned Action
2 Jul 2013
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Document Summary
Chapter 12: understanding research results: description and correlation. Statistics helps us understand the data collected in research investigations. Statistics are used to describe a data. Statistics are used to make inferences, on the basis of sample data, about a population. Variables can be described using one of four scales of measurements: nominal, have no numerical, quantitative properties. The levels are simply different categories or groups: most independent variables such as gender, eye colour, and hand dominance are nominal, ordinal, involve minimal quantitative distinctions. The levels are rank ordered from lowest to highest: for example rank-ordered judgements of most important problems facing your state today. Although you may get an order (1st crime, 2nd health, 3rd crime) but, you do not know how strongly people feel about the problems; the intervals between each of the problems are probably not equal: interval, more detailed quantitative properties. The intervals between levels are equal in size.
