A researcher wants to conduct an experiment that uses a 2 X 3 X 3 ...

[jon_i]

A researcher wants to conduct an experiment that uses a 2 X 3 X 3 design and requires ten participants in each cell. ____ participants would be needed for a between-subjects design but only ____ would be needed if a within-subjects design is used.
 
  a. Eight, five
  b. Eighteen, ten
  c. Eight, three
  d. Twenty-four, eight

Question 2

What effect do within-subjects designs have on F ratios?
 
  a. F ratios are more sensitive to changes in the treatments
  b. F ratios are less sensitive to changes in the treatments
  c. F ratios tend to be smaller
  d. There is no effect on F ratios.

[whitcassie]

Answer to Question 1

B

Answer to Question 2

A