When a Researcher Decides to Represent Adolescent Risk Behaviors with Variables

Multiple Choice

When a researcher decides to represent adolescent risk behaviors with variables about illegal drug use and the use of tobacco products,he or she is

A) moving from an abstract to a more concrete phase of the study.
B) deciding to give up some precision by focusing only on two representations of risk behaviors.
C) assuming that illegal drug use and tobacco use is only risky for adolescents.
D) choosing risk behaviors that are universally agreed to be the most important.