The data are gathered from end of semester student evaluations for a large sample of professors from the University of Texas at Austin. In addition, six students rate the professors' physical appearance. The result is a data frame where each row contains a different course and each column has information on either the course or the professor. https://www.openintro.org/stat/data/?data=evals
Source
Cetinkaya-Rundel M, Morgan KL, Stangl D. 2013. Looking Good on Course Evaluations. CHANCE 26(2). http://chance.amstat.org/2013/04/looking-good
Use the following R code to directly access this dataset in R.