Monica has the participants for her experiment sign up on a sheet of paper. She then cuts each name out individually, and places all the names in a box. Monica then pulls the first name out of the box and writes the name on the list for the experimental group in her study. The second name from the box is written on the list for the control group. She repeats this action until all the names are listed in one of the two groups. This procedure is called
A) placebo effect.
B) selection bias.
C) random assignment.
D) experimenter bias.

Question

Quizplus · Accepted Answer

This procedure is an example of random assignment, as the names are chosen at random to be placed in either the experimental or control group. This helps to ensure that there is an equal chance of each participant being placed in either group, reducing the likelihood of selection bias. Placebo effect and experimenter bias refer to other factors that can affect the outcome of an experiment, but are not relevant to this specific procedure.

Monica Has the Participants for Her Experiment Sign Up on a Sheet