If a researcher has used random assignment, then
A) the groups should be equalized on potential extraneous variables.
B) participants are matched on characteristics thought to be important for the dependent variable.
C) participants experience the dependent variable two or more times.
D) everyone in the population has an equal chance of being included in the experiment.

Question

Quizplus · Accepted Answer

Random assignment helps ensure that groups are equalized on potential extraneous variables by distributing them randomly across groups, reducing systematic differences.

If a Researcher Has Used Random Assignment, Then