2 papers
physics.ed-ph2017
An item response theory evaluation of the Light and Spectroscopy Concept Inventory national data set
Colin S. Wallace, Timothy G. Chambers, Edward E. Prather
This paper presents the first item response theory (IRT) analysis of the national data set on introductory, general education, college-level astronomy teaching using the Light and…
physics.ed-ph2016
Using graphical and pictorial representations to teach introductory astronomy students about the detection of extrasolar planets via gravitational microlensing
Colin S. Wallace, Timothy Chambers, Edward E. Prather +1
The detection and study of extrasolar planets is an exciting and thriving field in modern astrophysics, and an increasingly popular topic in introductory astronomy courses. One det…