One-way ANOVA
BEFORE YOU BEGIN:
The videos below will walk you through the following .Rmd file: https://drive.google.com/file/d/1Tp4q_zRab5SPtbMpy-5gHI78cAPNhGhG/view?usp=sharing
Be sure you already have the datafile from Ch. 9 saved.
TABLE OF CONTENTS:
17–A: Introduction and Learning Outcomes
In this module, we will be learning how to:
Assess whether our data meets the assumptions for a one-way ANOVA.
Conduct a one-way ANOVA analysis.
Interpret the results of our one-way ANOVA analysis.
Calculate effect sizes for one-way ANOVA results.
Conduct post-hoc analyses.
Interpret the results of our post-hoc analyses.
Depict the results of a one-way ANOVA visually.
Video (0:40)
17–B: Installing/Loading Packages and Dataset Information
Note that when working through the .Rmd files, R packages will often need to be installed, and libraries loaded. Do NOT quit R while installing or loading packages and libraries. This can corrupt crucial files. Instead, you can STOP the process (by clicking the red stop sign in the upper right corner of the console) and then quit the program, or wait until the process has been completed.
Video (10:51)
17–C: Research Question and Hypotheses
Video (1:35)
17–D: One-Way ANOVA Assumptions
Video (13:07)
17–E: Analysis and Interpretation
Video (4:50)
17– F: Effect Sizes
Video (2:28)
17–G: Post-hoc Analyses
Video (6:13)
17–H: Final Write-Up
Video (4:44)
17–I: Depicting One-Way ANOVA Visually
Video (5:03)
References
Horst, A. tidy_data _1–7 and tidyr_spread_gather https://github.com/allisonhorst CC-BY-4.0
R version 4.1.0 (2021-05-18) -- "Camp Pontanezen". Copyright (C) 2021 The R Foundation for Statistical Computing Platform: x86_64-w64-mingw32/x64 (64-bit)
RStudio Team (2020). RStudio: Integrated Development Environment for R. RStudio, PBC, Boston, MA URL http://www.rstudio.com/.
Tomlinson, T. Jones, B. and Chicoli, A.Statistics in Social Sciences https://sites.google.com/umd.edu/statisticsinsocialsciences
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More R instructional guides: https://www.statology.org/r-guides/ © 2021 Statology