Nine high-quality studies have been done on the programme, assessing the progress of one thousand juveniles overall. The Cochrane Collaboration, a non-profit institute that rigorously assesses the evidence behind health and social programmes, looked at these studies and found that two of them had no significant effect, while the remaining seven showed increased rates of criminality among juveniles. The authors of the review estimated that the Scared Straight programmes that had been studied increased the odds of offending by about 60%.
