| http://www.w3.org/ns/prov#value | - Analyses of statistical significance and effect size indicated that the elimination of surveys judged to be invalid substantially reduced the reported incidence of all forms of high-risk behavior; although boys reported more high-risk behavior than girls, mre than 10% of girls reported high-risk behavior including fighting, substance use, and carrying weapons at school within a 30.day period; aggr
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