Answer:
Confounding variable
Explanation:
Confounding variable refers to the type of variable that can disrupt the validity of the experiment by giving a certain effect to the variable.
The experiment above was designed to measure mood elevation among the subjects, but the living situation among the subjects are really different among one another and cannot be controlled by the researchers.
There is a cost of attending a college. The money and time that you spend on your education is an opportunity cost. You could the same amount of money and time for something else. What else could you do? What kind of lifestyle could you choose? What carrier would you have? All of these questions bear the concept of opportunity cost in this context.
Answer:
Speaker of House
Explanation:
President - Donald Trump
↓
Vice President - Mike Pence
↓
Speaker of the House of Representatives - Nancy Pelosi
~theLocoCoco
