Which of the Following Statements Is NOT True About an Experiment

Multiple Choice

Which of the following statements is NOT true about an experiment?

A) In an experiment, researchers are usually interested in examining differences between two or more groups.
B) In an experiment, researchers randomly select participants into two or more groups.
C) In an experiment, researchers randomly assign participants into two or more groups.
D) In an experiment, causal relationships can be inferred from the resulting data