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Statistics for Psychology
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Statistics for Psychology
A Beginner's Guide

Second Edition
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January 2023 | 400 pages | SAGE Publications Ltd
Statistics for Psychology is an interactive, highly visual, and accessible guide to the statistical practices you will encounter as a psychology student. Its software-agnostic approach keeps the focus on the core principles, rather than getting bogged down in complicated formulae and jargon. This book is based on the authors' BPS commended programme. It focusses on providing the strong foundational understanding you’ll need to use statistics confidently and creatively rather than the software-specific way in which statistics is often taught.

This edition includes:
  • new content throughout on being a responsible researcher,
  • a new chapter to support you in presenting your research to a critical audience,
  • carefully designed graphics to explain statistical principles,
  • “your turn” exercises to test your understanding of each chapter.

This book is the ideal guide for students approaching statistics and research methods in psychology for the first time. 

Roger Watt is Emeritus Professor of Psychology at the University of Stirling.
Elizabeth Collins is a researcher with a PhD in Psychology. 

 
Chapter 1: Why Do We Need Statistics?
 
Chapter 2: The Research Cycle
 
Chapter 3: Variables
 
Chapter 4: Relationships between Variables
 
Intermezzo 1: Correlation
 
Chapter 5: Uncertainty
 
Chapter 6: Null Hypothesis Testing
 
Chapter 7: Statistical Tests for One Independent Variable
 
Intermezzo 2: Alternatives to NHST: Bayes and Likelihood
 
Chapter 8: Minimising Uncertainty: Research Design
 
Chapter 9: Measurements and Uncertainty
 
Chapter 10: Sampling and Uncertainty
 
Intermezzo 3: Uncertain Power Analysis
 
Chapter 11: Hypotheses with More than One Independent Variable
 
Chapter 12: Covariations: Relationships between Two Independent Variables
 
Chapter 13: Analysing Data with Two or More Independent Variables
 
Chapter 14: Which Model is Best?
 
Intermezzo 4: Combining Multiple Studies: Replication and Meta-Analysis
 
Chapter 15: Contributing to Knowledge

Roger Watt

Roger Watt is Emeritus Professor of Psychology at the University of Stirling. He has spent many years rejecting ‘the system’ and instead is persistently stubborn in doing things his own way. He most enjoys his trumpet, his watercolours, and whatever he has managed to grow in his garden. Statistics for Psychology is the culmination of several years of pushing for change in how statistics should be approached by psychologists and students. More About Author

Elizabeth Collins

Dr Elizabeth Collins is a curious psychology researcher, who has spent many years translating indecipherable and anxiety-inducing statistics jargon to her peers and to her students. A keen world traveller, photographer and bookworm, she fell into statistics accidentally after becoming a peer tutor during her undergraduate studies. She has spent several years contributing heavily to undergraduate statistics teaching,  and hopes Statistics for Psychology can offer a helping hand to researchers worldwide. . More About Author