Which of the following is used to be certain that the participants in the different conditions of a research design are, on average, equivalent before the experiment begins?
A) Random sampling of participants
B) Random assignment to conditions
C) Temporal priority of the independent variable
D) A measured dependent variable

Question

Quizplus · Accepted Answer

Random assignment to conditions ensures that participants in different groups of an experiment are, on average, equivalent at the start of the experiment. This technique helps to control for participant variables that could confound the results.

Which of the Following Is Used to Be Certain That