Over the past two decades, the tragic consequences of adolescent drug use have spurred development of drug-prevention strategies. More than 2,000 school-based prevention programs are currently in use in the nation's classrooms. However, only a handful have been scientifically tested. Among the most successful of these is Project ALERT, an intervention designed in the 1980s by a RAND Health team led by Phyllis L. Ellickson, with funding from the Conrad N. Hilton Foundation.

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