This article was the subject of an educational assignment in Fall 2015. Further details were available on the "Education Program:Carleton University/Positive Psychology (Summer 2015)" page, which is now unavailable on the wiki. - More detail relating to what methods were used to test theories related to play and development Ejd2012 (talk) 02:03, 16 July 2015
- Sports and other games
- Establish scope of article and relationship with article on non-human animals
