The literature search examined primary data sources, reviews, and commentary papers investigating PP in schools. Systematic reviews and meta-analysis of CBT interventions in schools are examined for the purpose of providing context. Articles in SB PP with a distinct emphasis on educational gains that neglected mental health or well-being were excluded. Articles were obtained from journals world wide, although it should be noted that the data was derived from developed countries. Articles were grouped according to the purpose of the interventions used; to examine or improve certain positive traits, practice and mechanisms. The studies were then evaluated according to their reliability and validity to evaluate efficacy.