A researcher conducts a study looking at the relationship be

A researcher conducts a study looking at the relationship between hat size and intelligence. Which of the following might be an extraneous variable?

Hat size

Age

Intelligence

Hair color

Solution

Extraneous variable

\"Any uncontrolled factor that is not of interest to the researcher but could affect the results of the study; a researcher should attempt to control for them; e.g., gender, ethnicity, social class, genetics, intelligence, age\"

Answer: Intelligence