A Researcher Wants to Conduct an Animal Learning Experiment Using

Multiple Choice

A researcher wants to conduct an animal learning experiment using 40 participants in a between-subjects design. The researcher decides to randomly assign the participants to the four different conditions so that

A) participants from the same litter will not be tested together.
B) the data will be easier to analyze than if participants were assigned on any other basis.
C) the results will be more generalizable.
D) the groups will be equivalent prior to the manipulation of the independent variable.