The procedure which guarantees that all participants in an experiment have an equal chance of being assigned to any of the groups is referred to as
A) unbiased sampling.
B) selection bias.
C) matched samples.
D) random assignment.

Question

Quizplus · Accepted Answer

Random assignment is the procedure that guarantees all participants in an experiment have an equal chance of being assigned to any of the groups. Unbiased sampling refers to the process of selecting participants from the population in a way that does not favor any particular group. Selection bias occurs when certain types of participants are more likely to be selected for a study, which can affect the generalizability of the results. Matched samples refers to a method in which individuals are paired based on certain characteristics and then randomly assigned to different groups. However, this is not the same as random assignment to groups.

The Procedure Which Guarantees That All Participants in an Experiment