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Exercise

The data

The data were gathered from end of semester student evaluations for a large sample of professors from the University of Texas at Austin. In addition, six students rated the professors' physical appearance.†

The result is a data frame where each row contains a different course and columns represent variables about the courses and professors.

You can have a look at the different variables in the data frame, and their meaning here. As you'll be needing this list for reference throughout the lab, it's best to keep it open in a tab.

† This is a slightly modified version of the original data set that was released as part of the replication data for Data Analysis Using Regression and Multilevel/Hierarchical Models (Gelman and Hill, 2007).

Instructions

100 XP
  • Load the evals data set into R with the help of the load() and url() functions. The dataset's url is: http://assets.datacamp.com/course/dasi/evals.RData
  • Take some time to closely study the different elements of this data set. Next you will have to answer some multiple choice questions.