The major disadvantage in using within-subjects designs is the possible confounding factor of
A) participant effects.
B) experimenter effects.
C) joint alpha.
D) sequence effects.
Question 2
We carry out a study using an independent-groups design. We have ten participants per condition and three conditions. The total number of participants needed to carry out this study will be ________.
A) 20
B) 30
C) 10
D) 40
Fill in the blank with the correct answer.