What Is the Major Advantage of a Within-Participants Design

Multiple Choice

What is the major advantage of a within-participants design?

A) the data are easier to interpret than are data from between-participants designs
B) it does not carry the risk of carryover or sequencing effects
C) the experimenter doesn't have to worry about whether the groups of participants are equivalent to each other
D) it is not subject to the influence of expectancy effects