According to a Cochrane Library review of school-based suicide prevention curricula targeted at general populations of students (Guo and Harstall 2002), there is insufficient evidence to either support or refute these programs. A subsequent review (Gould et al. 2003) went beyond curricula to examine the effects of other approaches to suicide prevention and intervention. The authors concluded that screening for suicidality is fraught with problems related to low specificity of the screening instrument, poor acceptability among school administrators, and paucity of referral sites; gatekeeper training is effective in improving skills among school personnel and is highly acceptable to administrators but has not been shown to prevent suicide; peer helpers have not been shown to be either efficacious or safe; and postvention is promising but underinvestigated.