In an increasingly data-driven world, it is more important than ever for students as well as professionals to better understand basic statistical concepts. 100 Questions (and Answers) About Statistics addresses the essential questions that students ask about statistics in a concise and accessible way. It is perfect for instructors, students, and practitioners as a supplement to more comprehensive materials, or as a desk reference with quick answers to the most frequently asked questions.

What Is Repeated Measures Analysis of Variance, and How Is It Used?

What Is Repeated Measures Analysis of Variance, and How Is It Used?

Here’s another kind of analysis of variance analysis. Repeated measures analysis of variance is very similar to any other analysis of variance that tests the means of two or more groups for differences. In a repeated measures ANOVA, there is one factor on which participants are tested more than once. That’s why it’s called repeated, because you repeat the process at more than one point in time on the same factor. For example, if you measured the weight of the same group of participants every week for a year and wanted to look at weekly differences, repeated measures ANOVA would be the appropriate analytic tool.

For example, B. Lundy and colleagues examined same-sex ...

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