Multivariate Analysis A Flight Plan for Studying Statistics

Levels of Measurement Nominal Ordinal Interval Ratio =, ~= =, ~=, > < =, ~=, > <, + - =, ~=, > <,+ -, x /

Questions to Ask Descriptive or Inferential What level of measurement How many variables or groups

Decision Tree Purpose Level # Variables One = %/Ratio/Rate Descriptive Inferential Non-Quantitative Two = Crosstabs, P.R.E. > Two = Log Linear One = Mean / SD Quantitative Two = Correlation > Two = SEM One = Chi Square Two = Wilcoxon, M-W Non-Quantitative > Two = Logistic Regression One = Z-test Quantitative Two = t-test >Two = ANOVA

D V I V Log Linear ANOVA Logistic Regression SEM Models Non-Quantitative Quantitative Log Linear ANOVA Logistic Regression SEM Models Non-Quantitative Quantitative