A store owner is trying to determine how much advertising increases her overall profit. If she conducted an experiment, amount of advertising would be the ________ variable

Early exposure to a teratogen is likely to lead to

A. structural damage B. an easier labor for the mother C. functional damage D. structural damage AND an easier labor for the mother E. structural damage AND functional damage

In a study described in the textbook, procrastinators and nonprocrastinators who were enrolled in a health psychology class and had been assigned a paper due late in the semester were compared. Researchers found that the procrastinators

a. had more symptoms of physical illness early in the semester. b. had fewer symptoms of physical illness early in the semester. c. had fewer symptoms of physical illness late in the semester. d. received better grades on their papers.