ANCOVA
BEFORE YOU BEGIN:
The videos below will walk you through the following .Rmd file: https://drive.google.com/file/d/1Xfo84VA8Dp1RhmyrUsBM_I-5hjmlytz_/view?usp=sharing
Here is another dataset you will need to perform the ANCOVA: https://drive.google.com/file/d/19FtsxVqYjyUVukxPA6wgxd7itZ1ZZjoU/view?usp=sharing
Be sure you already have the datafile from Ch. 9 saved.
TABLE OF CONTENTS:
21-A: Introduction and Learning Outcomes
Video (0:48)
21-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 (11:57)
21-C: ANOVA vs. ANCOVA
Video (1:47)
21-D: Research Questions and Hypotheses
Video (2:53)
21-E: ANCOVA Assumptions
Video (18:26)
21-F: A True Co-variate Example
Video (4:49)
21-G: True Co-variate Research Question and Hypotheses
Video (1:29)
21-H: True Co-variate ANCOVA Assumptions
Video (9:14)
21-I: Analysis and Interpretation
Video (3:36)
.Rmd Analysis Template
https://drive.google.com/file/d/199eiRdt97WCTIK-vzaJMSnuU52svskgZ/view?usp=sharing
References
Cover image from Flickr user theilr. License CC-BY-SA 2.0
Tomlinson, T. Jones, B. and Chicoli, A.Statistics in Social Sciences https://sites.google.com/umd.edu/statisticsinsocialsciences