Donncha Hanna & Martin Dempster 
Psychology Statistics For Dummies 

The introduction to statistics that psychology students can’t
afford to be without

Understanding statistics is a requirement for obtaining and
making the most of a degree in psychology, a fact of life that
often takes first year psychology students by surprise. Filled with
jargon-free explanations and real-life examples, Psychology
Statistics For Dummies makes the often-confusing world of
statistics a lot less baffling, and provides you with the
step-by-step instructions necessary for carrying out data
analysis.

Psychology Statistics For Dummies:

* Serves as an easily accessible supplement to doorstop-sized
psychology textbooks

* Provides psychology students with psychology-specific
statistics instruction

* Includes clear explanations and instruction on performing
statistical analysis

* Teaches students how to analyze their data with SPSS, the most
widely used statistical packages among students

สารบัญ

Introduction 1

Part I: Describing Data 7

Chapter 1: Statistics? I Thought This Was Psychology! 9

Chapter 2: What Type of Data Are We Dealing With? 19

Chapter 3: Inputting Data, Labelling and Coding in SPSS 27

Chapter 4: Measures of Central Tendency 53

Chapter 5: Measures of Dispersion 73

Chapter 6: Generating Graphs and Charts 91

Part II: Statistical Significance 111

Chapter 7: Understanding Probability and Inference 113

Chapter 8: Testing Hypotheses 123

Chapter 9: What’s Normal about the Normal Distribution?139

Chapter 10: Standardised Scores 155

Chapter 11: Effect Sizes and Power 165

Part III: Relationships between Variables 183

Chapter 12: Correlations 185

Chapter 13: Linear Regression 211

Chapter 14: Associations Between Discrete Variables 243

Part IV: Analysing Independent Groups Research Designs 265

Chapter 15: Independent t-tests and Mann-Whitney Tests 267

Chapter 16: Between-Groups ANOVA 285

Chapter 17: Post Hoc Tests and Planned Comparisons for Independent Groups Designs 313

Part V: Analysing Repeated Measures Research Designs 327

Chapter 18: Paired t-tests and Wilcoxon Tests 329

Chapter 19: Within-Groups ANOVA 347

Chapter 20: Post Hoc Tests and Planned Comparisons for Repeated Measures Designs 379

Chapter 21: Mixed ANOVA 395

Part VI: The Part of Tens 415

Chapter 22: Ten Pieces of Good Advice For Inferential Testing417

Chapter 23: Ten Tips for Writing Your Results Section 421

Index 425

เกี่ยวกับผู้แต่ง

Donncha Hanna, Ph D is a psychology lecturer at Queen’s University Belfast whose primary teaching responsibilities include statistics and research methods. Martin Dempster, Ph D is a health psychologist and the research coordinator for the Doctorate in Clinical Psychology programme at Queen’s University Belfast.