# Question

A researcher conducts an experiment comparing two treatment conditions with 20 scores in each treatment condition.

a. If an independent-measures design is used, how many subjects are needed for the experiment?

b. If a repeated-measures design is used, how many subjects are needed for the experiment?

c. If a matched-subjects design is used, how many subjects are needed for the experiment?

a. If an independent-measures design is used, how many subjects are needed for the experiment?

b. If a repeated-measures design is used, how many subjects are needed for the experiment?

c. If a matched-subjects design is used, how many subjects are needed for the experiment?

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