Researchers Wish to Compare the Dispersion of Student Grades Across

Multiple Choice

Researchers wish to compare the dispersion of student grades across eight universities of varying sizes. What strategy would allow them to properly compare grade dispersion across the eight distributions?

A) adding up the deviations for the smallest and the largest university
B) dividing the squared deviations by the number of cases (N) for each university
C) calculating the mode for each of the eight universities
D) calculating the median for each of the eight universities