Use SPSS, or other software, to draw a set of boxplots (similar to Figure 5.4b) to illustrate the effect of increase the angle of rotation in the Mental Rotation data set. The data can be found at http://www.uvm.edu/~dhowell/fundamentals7/DataFiles/MentalRotation.dat

(A file with the “sav” extension is the SPSS file itself.)