"The Doubles," funded by the National Institute on Drug Abuse, is a seven-episode series of media tools designed to teach third- and fourth-grade students about the science of drug addiction. The program's curriculum was delivered through a set of DVDs, interactive CD-ROMs, workbooks, or an Internet Site. Results indicate that although the interventions were successful in teaching students about the biological bases of substance abuse, they had little effect on student attitudes. Implications for future studies are discussed.