Test Yourself
Take this quiz and see how you do. Select the correct answers by using the drop down menus. Once you are done, click submit to see your score! The ones that you get wrong will have a check!
1. If your experiment has four groups, it is a factorial experiment.
-- Choose an answer --
a. True
b. False
2. You have the following groups: Group 1 (No Treatment), Group 2 (Treatment A), Group 3 (Treatment B), and Group 4 (Treatment C). How many factors (independent variables) do you have in your experiment?
-- Choose an answer --
a. 1
b. 2
3. You have the following groups: Group 1 (No Treatment), Group 2 (Treatment A only), Group 3 (Treatment B only), and Group 4 (Treatment A and B). Do you have a factorial experiment?
-- Choose an answer --
a. Yes
b. No
4. A factorial experiment has at least two independent variables.
-- Choose an answer --
a. True
b. False
5. A 2 X 2 experiment yields ____ simple main effects.
-- Choose an answer --
a. 2
b. 4
6. In a factorial experiment, you could estimate the overall main effect of a treatment by _____ its simple main effects.
-- Choose an answer --
a. Averaging
b. Subtracting
7. In a 2 X 2 factorial experiment, you could estimate the interaction effect by _____ a treatment´s two simple main effects.
-- Choose an answer --
a. Averaging
b. Subtracting
8. You have the following means:
No Treatment A
Treatment A
No Treatment B
5
10
Treatment B
15
20
Do you have?
-- Choose an answer --
a. A main effect and an interaction
b. Two main effects
9. Questions about external validity often involve interactions.
-- Choose an answer --
a. True
b. False
10. Moderating variables are variables that interact with another variable.
-- Choose an answer --
a. True
b. False
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