The purpose of random assignment is to make sure that
A) each research participant spends an equal amount of time in the treatment and control groups.
B) each research participant has an equal chance of being in the treatment or control group.
C) everyone in each group is exactly the same on the independent variable.
D) everyone in each group is exactly the same on the dependent variable.

Question

Quizplus · Accepted Answer

Random assignment ensures that each research participant has an equal chance of being assigned to either the treatment or control group. This is important for minimizing bias and increasing the validity of the study's results. Random assignment does not necessarily ensure equal time spent in each group or that everyone is exactly the same on the independent or dependent variable.

The Purpose of Random Assignment Is to Make Sure That