In an experiment with 50 participants, which division of participants into groups would have the most power?
A) 15 experimental, 35 control
B) 40 experimental, 10 control
C) 25 experimental, 25 control
D) all divisions would have the same power
Question 2
You conducted a t test for independent means, and found that the t score equaled 0. This means that
A) the two population means must be equal.
B) the two population variances must be equal.
C) the two sample means must be equal.
D) the two sample variances must be equal.
The Experiment by Albrecht, 1978
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