Drug Testing in Schools According to a study conducted by the University of Michigan's Institute for Social Research, among the graduating class of 1997, 54.3 percent of students had used an illicit drug by the time they reached their senior year of high school; a dramatic increase from 40.7 percent in 1992. The study also reported an increase among high school seniors that had used an illicit drug from 27.1 percent in 1992 to 42.4 percent in 1997.1 It is a fact that …
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