Assume that you have developed a study technique that you believe will result in students scoring ...

Assume that you have developed a study technique that you believe will result in students scoring higher on research methods exams. You test your study technique with the design diagramed below. Using the diagramed design, what are your predictions?
 
  a. O2 should be greater than O1
  b. the (O2-O1) change should be greater than the (O4-O3) change.
  c. O4 must equal O3
  d. O2 should be greater than O1, the (O2-O1) change should be greater than the (O4-O3) change and O4 must equal O3
  e. O2 should be greater than O1, and the (O2-O1) change should be greater than the (O4-O3) change