A researcher is concerned that gender may affect how subjects respond to an experimental stimulus.So subjects are paired with another subject who has the same gender,and one member from each pair is assigned by a flip of a coin to the experimental group and one to the control group.This method of assigning subjects to groups is called ______.
A)matching
B)quotas
C)stratified randomization
D)random assignment

Question

Quizplus · Accepted Answer

The researcher is pairing subjects based on their gender to control for potential differences in how males and females respond to the experimental stimulus. This method is called matching. Option B, quotas, is not relevant to the scenario, as there is no mention of the researcher aiming to ensure a certain gender balance in their groups. Option C, stratified randomization, involves dividing subjects into subgroups based on specific characteristics and randomly assigning them to groups, which is not what is happening in this scenario. Option D, random assignment, is close but not entirely accurate. While the researcher is randomly assigning subjects to either the experimental or control group, the key point here is the use of matching to control for gender differences.

A Researcher Is Concerned That Gender May Affect How Subjects