1. [:FAQ/E:What does a number containing an 'E' signify?] 1. [:FAQ/heterogeneity: What is heterogeneity of variance in SPSS Probit and Logit procedures?] 1. [:FAQ/SumsOfSquaresTypes:In ANOVA and Regression, what do the various different types of Sums of Squares mean, and does the choice matter?] 1. [:FAQ/FVars: What is the variance of the mean of my transformed data?] 1. [:FAQ/Interaction:How do I work out the meaning of a significant interaction?] 1. [:FAQ/intercept: Interpreting the intercept term in a regression when covarying out predictors of within-subject difference scores] 1. [:FAQ/singcase: How do I compare a pairwise group difference to that of a single case?] 1. [:FAQ/ancreg:Can I do an analysis of covariance using a regression?] 1. [:FAQ/SobelTest:How do I test whether one independent variable has an influence on a dependent variable other than via the mediation of a second independent variable? (Sobel Test)] 1. [:FAQ/regline:How do I put a regression line on a scatterplot in SPSS Version 12.0 and above?] 1. [:FAQ/Collinearity:What is Collinearity in multiple regression, and what do I do about it?] 1. [:FAQ/ResidualsNonNormality:Residuals and (Non-)Normality] 1. [:FAQ/AdequateFit:How well does a regression line fit?] 1. [:FAQ/RegressionOutliers:Checking for outliers in regression] 1. [:FAQ/infmles:Why are the standard errors so large in logistic regression?] 1. [:FAQ/texts: Can you recommend any statistical textbooks?] 1. [:FAQ/RatCaseVar:Is there an optimal ratio of cases to predictor variables I should have before doing a regression?] 1. [:FAQ/power:How do I do power calculations in SPSS?]