3. Experimental Study: Educating college students on drinking risks can help lessen drinking behaviors — but only temporarily, according to a study by Old Dominion University psychologists. More than 1,000 undergraduates received a counseling session on the dangers of binge drinking; two-thirds of participants were required to attend the session because they had violated the university's alcohol policy. At the one-month follow-up, 82 percent of students reported drinking less than before the intervention, but 84 percent of this group returned to their baseline drinking levels at the one-year follow-up (Journal of Consulting and Clinical Psychology, online March 2).

What was the independent variable?

What was the dependent variable?