Berryhill, Katie J., and Timothy F. Slater. “Opportunity to Learn: Investigating Possible Predictors for Pre-Course Test Of Astronomy STandards TOAST Scores”. Journal of Astronomy & Earth Sciences Education 4, no. 2 (December 1, 2017). Accessed October 16, 2024. https://journals.modernsciences.org/index.php/JAESE/article/view/73.