Author Question: What does interaction mean in a factorial design? What will be an ideal ... (Read 72 times)

newbem · **on:** Jun 20, 2018

What does interaction mean in a factorial design?

What will be an ideal response?

Question 2

Events or influences other than the experimental treatment itself may occur between a pretest and a posttest that may affect the dependent variable. This threat is called

a. mortality.
b. history.
c. regression.
d. diffusion.
e. Hawthorne effect.

elizabethrperez · **Reply #1 on:** Jun 20, 2018

Answer to Question 1

Interaction refers to an effect that occurs in a factorial design when the influence of one factor depends on the level of a second factor. For example, a treatment may be effective with boys but not girls.

Answer to Question 2

B