Statistical Methods for Comparative Studies: Techniques for Bias Reduction SHARON ANDERSON et al. Updated: Tuesday Nov. 19, 2007 Chapters Chapter 1: INTRODUCTION (and Front Matter) Chapter 2: CONFOUNDING FACTORS Chapter 3: EXPRESSING THE TREATMENT EFFECT Chapter 4: RANDOMIZED AND NONRANDOMIZED STUDIES Chapter 5: GENERAL CONSIDERATIONS IN CONTROLLING BIAS Chapter 6: MATCHING Chapter 7: STANDARDIZATION AND STRATIFICATION Chapter 8: ANALYSIS OF COVARIANCE