Chapter 6. One-Way ANOVA
6.1 Introduction 79
6.2 Synopsis 79
6.3 Examples 82
6.4 Details & Notes 88
6.1 Introduction
One-way ANOVA (analysis of variance) is used to simultaneously compare two or more group means based on independent samples from each group. The bigger the variation among sample group means relative to the variation of individual measurements within the groups, the greater the evidence that the hypothesis of equal group means is untrue. This concept is illustrated in Appendix C (Section C.1), which discusses some basic concepts of ANOVA.
In clinical trials, this ANOVA method might be appropriate for comparing mean responses among a number of parallel-dose groups or among various strata based on patients' background information, such ...
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