Sociology 3306A/B Chapter Notes - Chapter 15: Experiment, Central Tendency, Observational Error
25 Apr 2018
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Data analysis takes place when theory and data are compared making sense of. Analyzing survey data textbook notes chapter 15 observations. Theory and data brought together when testing a hypothesis once data has been collected. Begins with statement of hypothesis and construction of theoretical model guide collection of data and determine alternative relationships or models. 1. ) placing relevant information in computer readable form. 2. ) inspecting and transforming the data for intended statistical analysis. Univariate analysis insufficient variation in responses, missing information, abnormalities. Experiments -> bivariate relationship is final analysis step design controls for extraneous variables. In non experimental design, need to control for certain variables. If preliminary hypothesis testing supports theoretical expectations, the analyst formulates multivariate models to rule out that initial results were spurious. If hypothesis is not supported in preliminary testing, researcher designs multivariate models to determine if controlled extraneous variables are blocking or distorting initial results. Quality control process applied mostly to paper and pencil surveys.
