Explaining Psychological Statistics

BARRY H. COHEN, PHD, is the Director of the Master’s Program in Psychology at New York University, where he has been teaching statistics for more than twenty years. He is the coauthor of two other successful statistics books from Wiley: Introductory Statistics for the Behavioral Sciences, Seventh Edition and Essentials of Statistics for the Social and Behavioral Sciences.

• Preface to the Third Edition xxvAcknowledgments xxxiPart One Descriptive Statistics 1Chapter 1 Introduction To Psychological Statistics 1Chapter 2 Frequency Tables, Graphs, And Distributions 27Chapter 3 Measures Of Central Tendency And Variability 57Chapter 4 Standardized Scores And The Normal Distribution 99Part Two One- and Two-Sample Hypothesis Tests 135Chapter 5 Introduction to Hypothesis Testing: The One-Sample z Test 135Chapter 6 Interval Estimation and the t Distribution 173Chapter 7 The t Test for Two Independent Sample Means 203Chapter 8 Statistical Power and Effect Size 237Part Three Hypothesis Tests Involving Two Measures on Each Subject 271Chapter 9 Linear Correlation 271Chapter 10 Linear Regression 303Chapter 11 The Matched t Test 337Part Four Analysis of Variance without Repeated Measures 365Chapter 12 One-Way Independent ANOVA 365Chapter 13 Multiple Comparisons 407Chapter 14 Two-Way ANOVA 451Part Five Analysis of Variance with Repeated Measures 501Chapter 15 Repeated Measures ANOVA 501Chapter 16 Two-Way Mixed Design ANOVA 545Part Six Multiple Regression and Its Connection to ANOVA 585Chapter 17 Multiple Regression 585Chapter 18 The Regression Approach to ANOVA 639Part Seven Nonparametric Statistics 685Chapter 19 The Binomial Distribution 685Chapter 20 Chi-Square Tests 713Appendix A Statistical Tables 743Appendix B Answers To Selected Exercises in Sections A and B 759Appendix C Data from IHNO's Experiment 777References 781Index 787