Guffey, S. K., Slater, T. F., & Slater, S. J. (2017). Development Of The EGGS Exam Of GeoloGy Standards To Measure Students’ Understanding Of Common Geology Concepts. Journal of Astronomy & Earth Sciences Education (JAESE), 4(1), 25–62. https://doi.org/10.19030/jaese.v4i1.9973