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A mathematics education researcher is studying where in high school
mathematics texts it is most effective to insert questions. She wants
to know whether it is better to present questions as motivation before
the text passage, or after the passage. The result may depend on the
type of question asked: simple fact, computation, or word problem.
How many factors are there in the experiment?
1?
2?
3?
4?
5? or..
6?

before, after 2
types of q 3

number of variables 2:

the when is a variable that has two values.

The type of question variable has three values.

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