Jennifer wants to design a good experiment and be sure it has internal validity.In other words, Jennifer wants to avoid:

Question

Quizplus · Accepted Answer

Confounding variables can affect the relationship between the independent and dependent variables, thereby reducing the internal validity of the experiment. Therefore, Jennifer should try to avoid them in order to design a good experiment with internal validity. Independent variables are necessary for an experiment, dependent variables are what is being measured, and control variables are necessary to ensure consistency and control for extraneous factors, so they are not to be avoided.

Jennifer Wants to Design a Good Experiment and Be Sure