-- In Part IV (Data analysis: Basics) and Part V (Data analysis: Techniques) by the term `cohort study', `LONGITUDINAL cohort study' is always intended. In such studies the same sample of units is followed over a long period of time. -- There is a serious typo on page 349 (Chapter 14, Initial steps in data analysis): In section 14.3.1, `circumambulations' should read: CROSSTABULATIONS -- In chapter 17 (Regression analysis and beyond): on page 426 the definition of part correlation is not completely correct, it should read: Part correlation. Correlation between the dependent variable and the residual of a predictor when it is regressed on the other predictors in the regression model. -- Figure 17.12 on page 452 (Analysis techniques for interobserver agreement) has been adapted and now also includes the intraclass correlation coefficient.