Professor O'Connell gives one group of children daily vitamins and the other group no vitamins.The professor observes that English grades improve in children receiving vitamins.English grades begin to drop in children receiving no vitamins.What is the independent variable in this study?

Question

Quizplus · Accepted Answer

The independent variable is the variable that is being manipulated in the study, in this case, the daily vitamins. The English grades improving or dropping are the dependent variables, as they are being affected by the administration or lack of administration of the vitamins. Therefore, the independent variable is D, vitamins.

Professor O'Connell Gives One Group of Children Daily Vitamins and the Other