Decide whether the question is correlational or experimental. If it is correlational define the 2 variables. If it is experimental, define the the independent and dependent variables and any extraneous variables that need to be controlled.
1. Do people talk more after eating than they do when they are hungry?
2. Does jogging lead to positive mental health?
3. Are the incomes of doctors related to the grades they receive in medical school?
4. Are breast-fed babies more alert than bottle-fed babies?
5. Does having divorced parents cause people to be more likely than others to have their own marriage end in divorce?