Introduction 1 Part 1: Describing Data 1 Chapter 1: Statistics? I Thought This Was Psychology! 7 Chapter 2: Dealing with Different Types of Data. 15 Chapter 3: Inputting Data and Labels in SPSS 23 Chapter 4: Measures of Central Tendency 39 Chapter 5: Measures of Dispersion 51 Chapter 6: Generating Graphs and Charts 65 Part 2: Understanding Statistical Significance 77 Chapter 7: Understanding Probability and Inference 79 Chapter 8: Testing Hypotheses 87 Chapter 9: What's Normal about the Normal Distribution? 97 Chapter 10: Standardized Scores 111 Chapter 11: Effect Sizes and Power 119 Part 3: Analyzing Relationships between Variables 137 Chapter 12: Correlations 139 Chapter 13: Linear Regression 157 Chapter 14: Associations between Discrete Variables 187 Part 4: Analyzing Independent Groups Research Designs 203 Chapter 15: Independent t-Tests and Mann-Whitney Tests 205 Chapter 16: Between-Groups ANOVA 221 Chapter 17: Post-Hoc Tests and Planned Comparisons for Independent Groups Designs 243 Part 5: Analyzing Repeated Measures Research Designs 257 Chapter 18: Paired t-Tests and Wilcoxon Tests 259 Chapter 19: Within-Groups ANOVA 275 Chapter 20: Post-Hoc Tests and Planned Comparisons for Repeated Measures Designs 301 Part 6: The Part of Tens 317 Chapter 21: Ten Tips for Inferential Testing 319 Chapter 22: Ten Tips for Writing a Results Section 323 Index 327.