For most children and teenagers, using the Internet has joined watching television and talking on the phone in the repertoire of typical behavior. In fact, 87 percent of 12- to 17-year-olds are now online, according to a 2005 Pew Research Center report. That’s a 24 percent increase over the previous four years, leading parents and policymakers to worry about the effect access to worlds of information—and misinformation—has on children. Psychologists are only beginning to answer that question, but a study led by Michigan State University psychologist Linda Jackson, PhD, showed that home Internet use improved standardized reading test scores. Other researchers have found that having the Internet at home encourages children to be more self-directed learners.

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