The effects of single-sex compared with coeducational schooling on students' performance and attitudes: a meta-analysis
Psychological Bulletin (2014) - Comment
pubmed: 24491022  doi: 10.1037/a0035740  issn: 1939-1455  issn: 0033-2909 

Erin Pahlke, Janet Shibley Hyde, Carlie M. Allison