Spencer-Cavaliere, Nancy, Janice Causgrove Dunn, and E. Jane Watkinson. “Is Recess an Achievement Context? An Application of Expectancy-Value Theory to Playground Choices”. Alberta Journal of Educational Research 55, no. 1 (April 1, 2009). Accessed May 4, 2024. https://journalhosting.ucalgary.ca/index.php/ajer/article/view/55273.