What does interaction mean in a factorial design? What will be ...

[newbem]

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]

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

[newbem]

YES! Correct, THANKS for helping me on my review

[dyrone]

Excellent