Sandra K. Abell is Curators' Professor of Science Education at the University of Missouri, US, where she directs the university's Science Education Center.


Ken Appleton is semi-retired as an Adjunct Associate Professor at Central Queensland University, Australia.


Deborah L. Hanuscin is Assistant Professor of Elementary Education at the University of Missouri, US, where she holds a joint appointment in the Department of Physics & Astronomy and Department of Learning, Teaching, & Curriculum.