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Banish your fears of statistical analysis using this clearly written and highly successful textbook. Statistics for Veterinary and Animal Science, Third Edition is an introductory text which assumes no previous knowledge of statistics. It starts with very basic methodology and builds on it to encompass some of the more advanced techniques that are currently used.
Statistics for Veterinary and Animal Science, Third Edition will enable you to handle numerical data and critically appraise the veterinary and animal science literature. Written in a non-mathematical way, the emphasis is on understanding the underlying concepts and correctly interpreting computer output, and not on working through mathematical formulae.
- Flow charts are provided to enable you to choose the correct statistical analyses in different situations
- Numerous real worked examples are included to help you master the procedures
- Two statistical packages, SPSS and Stata, are used to analyse data to familiarise you with typical computer output
- The data sets from the examples in the book are available as electronic files to download from the book's companion website at www.wiley.com/go/petrie/statisticsforvets.com in ASCII, Excel, SPSS and Stata formats, allowing you to practice using your own software and fully get to grips with the techniques
- A clear indication is provided of the more advanced or obscure topics so that, if desired, you can skip them without loss of continuity.
New to this edition:
- New chapter on reporting guidelines relevant to veterinary medicine as a ready reference for those wanting to follow best practice in planning and writing up research
- New chapter on critical appraisal of randomized controlled trials and observational studies in the published literature: a template is provided which is used to critically appraise two papers
- New chapter introducing specialist topics: ethical issues of animal investigations, spatial statistics, veterinary surveillance, and statistics in molecular and quantitative genetics
- Expanded glossaries of notation and terms
- Additional exercises and further explanations added throughout to make the book more comprehensive.
Carrying out statistical procedures and interpreting the results is an integral part of veterinary and animal science. Statistics for Veterinary and Animal Science is the only book on statistics that is specifically written for veterinary science and animal science students, researchers and practitioners.
Preface to Third Edition ix
Preface to First Edition xi
Preface to Second Edition xiii
1 The Whys and Wherefores of Statistics 1
2 Descriptive Statistics 12
3 Probability and Probability Distributions 28
4 Sampling and Sampling Distributions 46
5 Experimental Design and Clinical Trials 55
6 An Introduction to Hypothesis Testing 75
7 Hypothesis Tests 1. The t-test: Comparing One or Two Means 85
8 Hypothesis Tests 2. The F-test: Comparing Two Variances or More Than Two Means 100
9 Hypothesis Tests 3. The Chi-squared Test: Comparing Proportions 112
10 Linear Correlation and Regression 126
11 Further Regression Analyses 146
12 Non-parametric Statistical Methods 165
13 Further Aspects of Design and Analysis 181
14 Additional Techniques 200
15 Some Specialized Issues and Procedures 230
16 Evidence-based Veterinary Medicine 243
17 Reporting Guidelines 252
18 Critical Appraisal of Reported Studies 269
Solutions to Exercises 303
A Statistical Tables 331
B Tables of Confidence Intervals 347
C Glossary of Notation 349
D Glossary of Terms 353
E Flowcharts for Selection of Appropriate Tests 376
Aviva Petrie, Head of Biostatistics Unit and Senior Lecturer, UCL Eastman Dental Institute, London; Honorary Lecturer in Medical Statistics, Medical Statistics Unit, London School of Hygiene and Tropical Medicine, UK. She is also author of a number of other books, including Medical Statistics at a Glance. Paul Watson is a distinguished and well respected scientist in the field of Reproductive Biology, and is Emeritus Professor at the Royal Veterinary College, UK.
"The authors have succeeded admirably in the objective to provide an introductory statistics text, including basic concepts appropriate for "the complete novice in statistics"."
- Doody Enterprises, US 2006