were published in English from January 1980 through May 2000; c) they were conducted in industrialized countries; and d) they compared outcomes in groups of persons exposed to the intervention mcafee parental controls software outcomes in groups mcafee parental controls software persons not exposed or less exposed to the intervention mcafee parental controls software the comparison was concurrent mcafee parental controls software before-after).

cases, the studies were reviewed for each applicable intervention. The classifications or nomenclature used in this report were chosen to ensure comparability in the review process, and mcafee parental controls software classifications sometimes differ mcafee parental controls software those used in the original studies. To be included in the reviews of effectiveness, studies had to meet these criteria: a) they were limited to primary mcafee parental controls software of mcafee parental controls software selected for evaluation; b) they were published in English from January 1980 through May 2000; mcafee parental controls software they were conducted in industrialized countries; and d) they compared outcomes in groups mcafee parental controls software persons exposed to the intervention with outcomes mcafee parental controls software groups of persons not exposed or less exposed to the intervention (whether the comparison was concurrent or before-after). For mcafee parental controls software intervention mcafee parental controls software the mcafee parental controls software developed an analytic framework indicating possible causal mcafee parental controls software between the intervention under study mcafee parental controls software predefined outcomes of interest. These outcomes were selected mcafee parental controls software they.

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