If an Independent-Measures Design Is Being Used to Compare Two

Multiple Choice

If an independent-measures design is being used to compare two treatment conditions,then how many different groups of participants would be needed and how many scores would there be for each participant?

A) 1 group, 1 score each
B) 2 groups, 1 score each
C) 1 group, 2 scores each
D) 2 groups, 2 scores each