Researcher Alfred Kinsey verified instances of orgasm in boys as young as five months and girls as young as four months

A professor wants to design her courses to offer students the best chance of succeeding. In order to determine the best approach to use, she decides to vary the number of quizzes she administers during her first two years of teaching

What is a good dependent variable for this professor to use? a) number of absences in each class b) average grade in each of the classes c) students' scores on the Scholastic Aptitude Test d) number of seniors in each of the classes she teaches

For the average American retiring today, the largest single source of retirement income is from _______

a. pension benefits through a job b. private savings c. Social Security d. Supplemental Security Income