Continuous Data Analyses: Correlation and Regression

This chapter contains section titled: Correlation coefficients Research question Regression models Assumptions for regression Research question Plotting the regression Multiple linear regression Sample size considerations Collinearity Multiple linear regression: testing for group differences Research question Plotting a regression line with categorical explanatory variables Regression models with two explanatory categorical variables Plotting regression lines with two explanatory categorical variables Including multi-level categorical variables Multiple linear regression with two continuous variables and two categorical variables Research question Interactions Model of best fit Residuals Outliers and remote points Validating the model Non-linear regression Centreing Notes for critical appraisal