If each participant in an experiment has an equal chance of being in any of the groups, then the researcher has used __________ assignment.
A) correlated
B) random
C) nonrandom
D) ex post facto

Question

Quizplus · Accepted Answer

Random assignment ensures that each participant has an equal chance of being in any of the groups, eliminating bias and increasing the likelihood of valid results.

If Each Participant in an Experiment Has an Equal Chance