Retrieval practice and spacing in an engineering mathematics classroom: Do the effects add up? - Campbell R. Bego; Keith B. Lyle; Patricia A. S. Ralston; Jeffrey L. Hieb (FIE, 2017)

Research to Practice to Research: Intrinsic requirements of implementing and studying spaced retrieval practice in STEM courses. - Campbell R. Bego; Patricia A. S. Ralston; Keith B. Lyle; Jason C. Immekus (FIE, 2020)

Introducing desirable difficulty in STEM barrier courses with spaced retrieval practice. - Campbell R. Bego; Keith B. Lyle; Jason C. Immekus; Patricia A. S. Ralston (FIE, 2021)

Using SQL to query the difficulty imposed by spaced retrieval in engineering mathematics. - Jeremy R. Boyd; Campbell R. Bego; Osvaldo Garcia; Patricia A. S. Ralston; Jason C. Immekus; Keith B. Lyle (FIE, 2021)

Spaced Retrieval Practice in Two Fundamental Engineering Courses: Calculus and Physics. - Ryan J. Patrick; Campbell R. Bego; Raymond J. Chastain; Patricia A. S. Ralston; Jason C. Immekus; Keith B. Lyle (FIE, 2022)

Spaced Retrieval Practice Improves Engineering Student Performance in Physics. - Campbell R. Bego; Alvin Tran; Patricia A. S. Ralston; Cenetria Crockett; Raymond J. Chastain; Keith B. Lyle (FIE, 2023)