Credits

Academy Counselling Corp. https://academycentre.com
American Psychiatric Association (1987) The Diagnostic and Statistical Manual of Mental Disorders (third edition – revised). Washington, D.C.: Author.
Barkley, R.A. (1990) Attention-deficit hyperactivity disorder: A handbook for diagnosis and treatment . New York: The Guilford Press.
DTAPPinc  https://www.dtappinc.com
Gnagey, Thomas D. (1974) The School Problem Screening Inventory . Facilitation House: Ottawa, Illinois.
Kravets, Volodymyr  https://ua.linkedin.com/pub/volodymyr-kravets/62/6a2/76b
Helpmetrics https://helpmetrics.ca
Moore, Tyler  http://tyler.com
Nodrick, W.S. and Li, A.K. (1985) Concurrent Validity of the School Problem Screening Inventory for Behaviour-Disordered Students, Psychology in the Schools, 1992, 29, 126 -131.
Rogers, Karen and Silverman, Linda Personal, Social, Medical and Psychological Factors in 190+ IQ Children. Presented  at the National Association for Gifted Children 44th Annual Convention in Little Rock, Arkansas, November 7, 1997.
Yandall, Patrick Artful Expression https://www.reverbnation.com/patrickyandall/songs
Stepfamily Foundation of Alberta http://www.stepfamily.ca