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!

A1 A2
B1 4 5
B2 6 8

1. In the table above, is there an

Experiment A
A1 A2
B1 5 7
B2 6 7

Experiment B
A1 A2
B1 6 4
B2 4 6

2. Does Experiment A or Experiment B (see tables above) provide the strongest evidence that the psychological effect of Variable A depends on the level of Variable B?

Experiment A
A1 A2
B1 4 1
B2 6 1

Experiment B
A1 A2
B1 6 4
B2 4 6

3. For which experiment (see tables above) is the interaction most likely to be due to an artifact of having ordinal data?
4. If your data are ranks, you may have an ordinal interaction.
5. If you have an ordinal interaction, it means that a treatment has a different type of effect under one condition than it does in another.
6. If your measure (a knowledge test) is too easy, you may have ceiling effects that result in an ordinal interaction.



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