1. *Indicates study included in the review.
2. Allensworth, E. M., & Easton, J. Q. (2007). What matters for staying on-track and graduating in Chicago public high schools: A close look at course grades, failures, and attendance in the freshman year. Chicago, IL: Consortium on Chicago School Research. http://ccsr.uchicago.edu/sites/default/files/publications/07%20What%20Matters%20Final.pdf (Retrieved on August 7, 2017)
3. American Psychiatric Association (2013) Diagnostic and statistical manual of mental disorders, 5th edition. Author, Washington, DC.
4. *Asano, S. (2014) Students involved in school nonattendance and their peers. Japanese Journal for the Problems of the Handicapped, 42, 45–50. (in Japanese)
5. Baker, B. L., Neece, C. L., Fenning, R. M., Crnic, K. A., & Blacher, J. (2010) Mental disorders in five-year-old children with or without developmental delay: Focus on ADHD. Journal of Clinical Child and Adolescent Psychology, 39, 492–505.