Variations on Split Plot and Split Block Experiment DesignsISBN: 9780470081495
288 pages
January 2007

Variations on Split Plot and Split Block Experiment Designs provides a comprehensive treatment of the design and analysis of two types of trials that are extremely popular in practice and play an integral part in the screening of applied experimental designssplit plot and split block experiments. Illustrated with numerous examples, this book presents a theoretical background and provides two and three error terms, a thorough review of the recent work in the area of split plot and split blocked experiments, and a number of significant results.
Written by renowned specialists in the field, this book features:
* Discussions of nonstandard designs in addition to coverage of split block and split plot designs
* Two chapters on combining split plot and split block designs and missing observations, which are unique to this book and to the field of study
* SAS? commands spread throughout the book, which allow readers to bypass tedious computation and reveal startling observations
* Detailed formulae and thorough remarks at the end of each chapter
* Extensive data sets, which are posted on the book's FTP site
The design and analysis approach advocated in Variations on Split Plot and Split Block Experiment Designs is essential in creating tailormade experiments for applied statisticians from industry, medicine, agriculture, chemistry, and other fields of study.
Preface xiii
Chapter 1. The standard split plot experiment design 1
1.1. Introduction 1
1.2. Statistical design 3
1.3. Examples of splitplotdesigned experiments 6
1.4. Analysis of variance 9
1.5. Ftests 12
1.6. Standard errors for means and differences between means 14
1.7. Numerical examples 16
1.8. Multiple comparisons of means 23
1.9. One replicate of a split plot experiment design and missing observations 26
1.10. Nature of experimental variation 28
1.11. Repeated measures experiments 29
1.12. Precision of contrasts 29
1.13. Problems 31
1.14. References 32
Appendix 1.1. Example 1.1 code 34
Appendix 1.2. Example 1.2 code 36
Chapter 2. Standard split block experiment design 39
2.1. Introduction 39
2.2. Examples 41
2.3. Analysis of variance 43
2.4. Ftests 44
2.5. Standard errors for contrasts of effects 45
2.6. Numerical examples 46
2.7. Multiple comparisons 52
2.8. One replicate of a split block design 53
2.9. Precision 53
2.10. Comments 54
2.11. Problems 55
2.12. References 55
Appendix 2.1. Example 2.1 code 56
Appendix 2.2. Example 2.2 code 56
Appendix 2.3. Problems 2.1 and 2.2 data 60
Chapter 3. Variations of the split plot experiment design 61
3.1. Introduction 61
3.2. Split split plot experiment design 62
3.3. Split split split plot experiment design 67
3.4. Whole plots not in a factorial arrangement 73
3.5. Split plot treatments in an incomplete block experiment design within each whole plot 74
3.6. Split plot treatments in a rowcolumn arrangement within each whole plot treatment and in different
whole plot treatments 75
3.7. Whole plots in a systematic arrangement 76
3.8. Split plots in a systematic arrangement 77
3.9. Characters or responses as split plot treatments 77
3.10. Observational or experimental error? 79
3.11. Time as a discrete factor rather than as a continuous factor 80
3.12. Inappropriate model? 86
3.13. Complete confounding of some effects and split plot experiment designs 90
3.14. Comments 91
3.15. Problems 91
3.16. References 93
Appendix 3.1. Table 3.1 code and data 94
Chapter 4. Variations of the split block experiment design 97
4.1. Introduction 97
4.2. One set of treatments in a randomized complete block and the other in a Latin square experiment design 98
4.3. Both sets of treatments in split block arrangements 100
4.4. Split block split block or strip strip block experiment design 100
4.5. One set of treatments in an incomplete block design and the second set in a randomized complete block design 106
4.6. An experiment design split blocked across the entire experiment 107
4.7. Confounding in a factorial treatment design and in a split block experiment design 108
4.8. Split block experiment design with a control 111
4.9. Comments 114
4.10. Problems 114
4.11. References 115
Appendix 4.1. Example 4.1 code 115
Chapter 5. Combinations of SPEDs and SBEDs 120
5.1. Introduction 120
5.2. Factors A and B in a split block experiment design and factor C in a split plot arrangement to factors A and B 120
5.3. Factor A treatments are the whole plot treatments and factors B and C treatments are in a split block arrangement within each whole plot 125
5.4. Factors A and B in a standard split plot experiment design and factor C in a split block arrangement over both
factors A and B 127
5.5. A complexly designed experiment 130
5.6. Some rules to follow for finding an analysis for complexly designed experiments 135
5.7. Comments 138
5.8. Problems 139
5.9. References 139
Appendix 5.1. Example 5.1 code 139
Appendix 5.2. Example 5.2 data set, code, and output 144
Chapter 6. World records for the largest analysis of variance table (259 lines) and for the most error terms (62) in one analysis of variance 147
6.1. Introduction 147
6.2. Description of the experiment 148
6.3. Preliminary analyses for the experiment 152
6.4. A combined analysis of variance partitioning of the degrees of freedom 157
6.5. Some comments 163
6.6. Problems 163
6.7. References 163
Appendix 6.1. Figure 6.1 to Figure 6.6 164
Chapter 7. Augmented split plot experiment design 169
7.1. Introduction 169
7.2. Augmented genotypes as the whole plots 170
7.3. Augmented genotypes as the split plots 174
7.4. Augmented split split plot experiment design 176
7.5. Discussion 180
7.6. Problems 180
7.7. References 181
Appendix 7.1. SAS code for ASPED, genotypes as whole plots, Example 7.1 182
Appendix 7.2. SAS code for ASPEDT, genotypes as split plots, Example 7.2 185
Appendix 7.3. SAS code for ASSPED, Example 7.3 186
Chapter 8. Augmented split block experiment design 188
8.1. Introduction 188
8.2. Augmented split block experiment designs 188
8.3. Augmented split blocks for intercropping experiments 193
8.4. Numerical example 8.1 194
8.5. Comments 197
8.6. Problems 197
8.7. References 198
Appendix 8.1. Codes for numerical Example 8.1 198
Chapter 9. Missing observations in split plot and split block experiment designs 202
9.1. Introduction 202
9.2. Missing observations in a split plot experiment design 203
9.3. Missing observations in a split block experiment design 204
9.4. Comments 204
9.5 Problems 204
9.6. References 206
Appendix 9.1. SAS code for numerical example in Section 9.2 206
Appendix 9.2. SAS code for numerical example in Section 9.3 209
Chapter 10. Combining split plot or split block designed experiments over sites 213
10.1. Introduction 213
10.2. Combining split plot designed experiments over sites 213
10.3. Combining split block designed experiments over sites 217
10.4. Discussion 219
10.5. Problems 219
10.6. References 219
Appendix 10.1. Example 10.1 219
Appendix 10.2. Example 10.2 229
Chapter 11. Covariance analyses for split plot and split block experiment designs 239
11.1. Introduction 239
11.2. Covariance analysis for a standard split plot design 240
11.3. Covariance analysis for a split block experiment design 250
11.4. Covariance analysis for a split split plot experiment design 255
11.5. Covariance analysis for variations of designs 259
11.6. Discussion 260
11.7. Problems 260
11.8. References 262
Appendix 11.1. SAS code for Example 11.1 263
Appendix 11.2. SAS code for Example 11.2 264
Appendix 11.3. SAS code for Example 11.3 265
Index
FREEDOM KING, PHD, is Teaching Support Specialist in the Department of Biological Statistics and Computational Biology at Cornell University. His areas of interest include generalized linear mixed models, experimental designs, categoricaldata analysis, and statistical computing with an emphasis on work sales through SAS® programming techniques.
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