1. A researcher conducts an experiment comparing two treatment conditions and obtains data from 15 people...
1. A researcher conducts an experiment comparing two treatment conditions and obtains data from 15 people for each treatment condition
a. If the researcher used an independent-measures design, how many subjects altogether participated in the experiment?
b. If the researcher used a repeated-measures design, how many subjects altogether participated in the experiment?
c. If the researcher used a matched-subjects design, how many subjects altogether participated in the experiment?
Homework Answers
a) since there are two groups
total number of subjects required =2*number of subject in each group =2*15 =30
b)
since same subjects are in both groups
total number of subjects required =15
c)
since subjects are different in both groups( only they are matched with some attribute):
total number of subjects required =2*number of subject in each group =2*15 =30
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