“A Rasch Analysis of the Self-Determination, Purpose, Identity, and Engagement in Science (SPIRES) Survey: Instrument Validation and Recommendations”. International Journal of Education in Mathematics, Science and Technology 13, no. 4 (June 15, 2025): 992–1015. Accessed July 30, 2025. https://ijemst.com/index.php/ijemst/article/view/790.