In a research study, it's found that participants eat more when given a red rather than green container of food. The red container was offered just before lunch and the green one just after dinner. In this study, time of day and previous food intake are examples of which type of variable?

Question

Quizplus · Accepted Answer

Time of day and previous food intake are confounding variables because they could influence the dependent variable (amount of food eaten) independently of the independent variable (color of the container).

In a Research Study, It's Found That Participants Eat More