An attempt to take one's life that is often a call for attention is called

A researcher is investigating the effects of exercise on weight. What are the independent and dependent variables in this experiment?

a) The dependent variable is weight; the independent variable is exercise. b) The independent variable is calories consumed; the dependent variable is diet. c) The independent variable is weight; the dependent variable is calories consumed. d) The dependent variable is amount of exercise; the independent variable is calories consumed.

Children who have no siblings are not as well adjusted as children who grow up with siblings

Indicate whether the statement is true or false.