The boxplot serves up a great deal of information about both the center and spread of the data, allowing us to identify skewness and outliers, in a form that is both easy to interpret and easy to compare to other distributions. It is the graphical equivalent to the five-number summary. All of that in a simple graph made of just a few lines.
This video teaches the following concepts and techniques:
SPSS Chart Builder
Boxplots
Outliers
Daniel, T., & Tivener, K. (2016). Effects of sharing clickers in an active learning environment. Educational Technology & Society, 19 (3), 260–268. Retrieved from [ Ссылка ]
Link to a Google Drive folder with all of the files that I use in the videos including the Bear Handout and the Clickers.sav dataset. As I add new files, they will appear here, as well.
[ Ссылка ]
Table of Contents:
01:30 - The Box
01:50 - The Whiskers
06:48 - Correct the Outlier
07:08 - Univariate vs. Multivariate
08:48 - When To Delete Outliers
09:32 - Correct the Outlier
09:53 - What Does The Boxplot Show?
