Dr Callahan Has Rearranged Study Hall and Class Work Time

Multiple Choice

Dr. Callahan has rearranged study hall and class work time so that class work time now comes before lunch in an effort to better keep students' attention. He wants to know if this new arrangement has improved student's study time compared with last semester's class. What statistical test would be appropriate to use in order to determine if the current class of students has benefited from the rearrangement of classes?

A) an independent samples t-test
B) a paired samples t-test
C) a one-way ANOVA
D) a single-sample t-test