Statistics in Nutrition and Dietetics
Description
Statistics in Nutrition and Dietetics is a clear and accessible volume introducing the basic concepts of the scientific method, statistical analysis, and research in the context of the increasingly evidence-based field of nutrition and dietetics. Focusing on quantitative analysis and drawing on short, practical exercises and real-world examples, this reader-friendly textbook helps students understand samples, principles of measurement, confidence intervals, the theoretical basis and practical application of statistical tests, and more.
- Includes numerous examples and exercises that demonstrate how to compute the relevant outcome measures for a variety of tests, both by hand and using SPSS
- Provides access to online resources, including analysis-ready data sets, flow charts, further readings and a range of instructor materials such as PowerPoint slides and lecture notes
- Ideal for demystifying statistical analysis for undergraduate and postgraduate students
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Person
Dr Michael Nelson is Director of PHN Research Ltd, a consultancy that aims to foster better public health nutrition research. He is Emeritus Reader in Public Health Nutrition at King's College London, London, UK.
Content
About the Author ix
Preface xi
Acknowledgements xv
About the Companion Website xvii
Part 1 Setting the Statistical Scene 1
Chapter 1 The Scientific Method 3
Chapter 2 Populations and Samples 31
Chapter 3 Principles of Measurement 71
Chapter 4 Probability and Types of Distribution 95
Chapter 5 Confidence Intervals and Significance Testing 115
Part 2 Statistical Tests 131
Chapter 6 Two Sample Comparisons for Normal Distributions: The t-test 135
Chapter 7 Nonparametric Two-Sample Tests 155
Chapter 8 Contingency Tables, Chi-Squared Test, and Fisher's Exact Test 167
Chapter 9 McNemar's Test 195
Chapter 10 Association: Correlation and Regression 205
Chapter 11 Analysis of Variance 227
Part 3 Doing Research 249
Chapter 12 Design, Sample Size, and Power 251
Chapter 13 Describing Statistical Models and Selecting Appropriate Tests 263
Chapter 14 Designing a Research Protocol 267
Chapter 15 Presenting Results to Different Audiences 283
Part 4 Solutions to Exercises 299
Appendix A1 Probabilities (P) of the Binomial Distribution for n, r, and p (Based on Sample Proportions) or p (Proportion in the Population) 323
Appendix A2 Areas in the Tail of the Normal Distribution 341
Appendix A3 Areas in the Tail of the t Distribution 343
Appendix A4 Wilcoxon U Statistic (Mann-Whitney Test) 345
Appendix A5 Wilcoxon T Statistic 347
Appendix A6 Sign Test Statistic R 349
Appendix A7 Percentages in the Tail of the Chi-Squared Distribution 351
Appendix A8 Quantiles of the Spearman Rank Correlation Coefficient 353
Appendix A9 Percentages in the Tail of the F Distribution 355
Appendix A10 Flow Chart for Selecting Statistical Tests 363
Index 365
