- What is your dependent variable?
How will you measure it? Please be specific about what your outcome measure is and how it will be scored.

- What is your first independent (predictor) variable?

Your independent variable must vary. In your experiment, it will vary from _______________________________________

(name and briefly describe the first level of your first factor) to _______________________________________________

(name and briefly describe the second level of your first factor)

A true independent variable is a treatment that you manipulate. How will you manipulate your first independent variable?

Is this variable a true independent variable?

Why or why not?Can you make statements about the effects of this variable?

Why or why not? - What is your second independent (predictor) variable?
This independent variable is a variable because it varies from ________ to ______________.

Is this variable a true independent variable?

Why or why not?Can you make statements about the effects of this variable?

Why or why not? - Graph your predicted results.

- What is your hypothesis about the effect of your first independent variable?
- Explain how this hypothesis is consistent with your graph. That is, how could someone tell, by looking at your graph, what you are predicting.
- Why do you think this hypothesis will be supported?
- Why do you think this hypothesis is worth testing?

- Explain how this hypothesis is consistent with your graph. That is, how could someone tell, by looking at your graph, what you are predicting.
- What is your hypothesis about the effect of your second independent variable?
- Explain how this hypothesis consistent with your graph.
- Why do you think this hypothesis will be supported?
- Why do you think this hypothesis is worth testing?

- Explain how this hypothesis consistent with your graph.
- What is your hypothesis about the interaction effect?
- Explain how your interaction prediction is consistent with the definition of an interaction. Remember that your hypothesis should fit the formula:

The effect of varying independent variable (A) _______

on the dependent variable __________

will be different (circle one: stronger, weaker, opposite) for the

_____ (insert name for the first level of your "B" [2nd] independent variable in blank) groups than for the (insert name for B2) ______ groups. - Explain how this hypothesis is consistent with your graph.
- Why do you think this hypothesis will be supported?
- Why do you think this hypothesis is worth testing?

- Explain how your interaction prediction is consistent with the definition of an interaction. Remember that your hypothesis should fit the formula:
- How will you assign participants to condition? Why?
- How many participants would you use? Why?
- Fill in the following ANOVA table for your proposed study:
Source of Variance Degrees of Freedom A ( ) B ( ) A X B Interaction Error Total - Earlier (in number 4), you graphed your predicted results. Below, graph one other possible outcome of your study.