A researcher sets up a study to examine how lecture comprehension of college students is affected by lecture type (history, psychology, statistics, or English), classroom size (large or small), presentation method (blackboard, overhead projector, or computer), and instructor (graduate student, assistant professor, or full professor).How many cells are in this design?
A) 4
B) 12
C) 24
D) 72

Question

Quizplus · Accepted Answer

There are 4 levels of lecture type, 2 levels of classroom size, 3 levels of presentation method, and 3 levels of instructor, which gives a total of 4 x 2 x 3 x 3 = 72 cells in the design. Therefore, the best choice is D.

A Researcher Sets Up a Study to Examine How Lecture