SSCI 3910U Study Guide - Midterm Guide: Univariate, Test Statistic, Statistical Hypothesis Testing
Document Summary
Descriptive stats (basic statistics) data reduction technique reduces the amounts of data you have, but very limited. Single variable analysis to examine trends and patterns of the distribution. Measures of central tendency (mode - nominal, median - ordinal, mean - ir) Measures of dispersion (variance, standard deviation) ir variables. Graphs (bar charts nominal/ordinal, histograms - ir) skewness and kurtosis. Same as bivariate, but adding a control: replication control has no effect, spurious control takes over, interaction effect only one condition of the control matters. Iv -> dv: relationship between x and y, crossclassification table, chi square -> sig or not. If less than . 05 significance reject the null. If greater not significance fail to reject: measure of associations (strength of relationship) Concept of ci introduced (95% with . 05 alpha) Inferential stats can generalize findings and make inferences. Compares averages between more than two groups of two factors. Assess the interaction effects of factor 1*factor.
