Miller, Wampold, and Varhely, 2008 was a meta-analysis study designed to see if there are differences in efficacy among treatment models applied to children and youth.

FORBES: There Are No Silver-Bullets in Education Reform

This type of study, known as a meta-analysis, can highlight problems that no single study typically can.

CNN: Diabetes increases cancer mortality risk

While it would be a formidable task to check every study Wagenaar et al. subsumed in their meta-analysis, a quick check to find out whether they included a study with a known systematic bias reveals the study included Chesson et al., a study by the Centers for Disease Control which claimed that increased beer taxes could reduce the rate of gonorrhea.

FORBES: Pay More Tax And Cheat Death!