In any research study, there is the potential for extraneous variables to influence the results. These are variables that are not of interest to the researcher but which could potentially impact the results of the study. For example, in a study looking at the effect of a new drug on patients with a certain disease, extraneous variables could include things like the patients' diet, exercise habits, and overall health.
To control for these extraneous variables, researchers will often use various methods. First, they will try to ensure that all the participants in the study are as similar as possible. This may involve selecting participants of the same age, gender, and health status. Second, the researcher may randomly assign participants to different groups, such as control and experimental groups.
However, students sometimes struggle to discuss how the researcher may control for extraneous variables. Getting help from expert tutors online is a sure way to get accurate answers and solutions quickly. Below is a sample assignment we answered correctly; post your custom question and get answers quickly.
Topic 4 DQ 1
Compare independent variables, dependent variables, and extraneous variables. Describe two ways that researchers attempt to control extraneous variables. Support your answer with peer-reviewed articles.
