145 D. Ifenthaler et al. (eds.), Assessment in Game-Based Learning: Foundations, Innovations, and Perspectives, DOI 10.1007/978-1-4614-3546-4_9, © Springer Science+Business Media New York 2012 9.1 Introduction Recognizing the power and potential of game-based technologies to enhance achievement and learner-centered education, policy leaders like the National Science Foundation (Borgman et al., 2008), the Department of Education (2010), and the National Research Council (NRC, 2011) set a national agenda for educational research. Such research will discover, validate, and disseminate sound methods for design, development, and implementation of instructional games that enhance and assess learning. The current study investigates the accuracy and sensitivity of an assessment tool built into a videogame world: the Timed Report. This work is part of a research program that applies cognitive science analogical reasoning theory (e.g., Gentner, 1983; Holyoak, Gentner, & Kokinov, 2001; Kurtz, Miao, & Gentner, 2001) to design and develop instructional games that (a) enhance students’ prepara- tion for learning targeted concepts and (b) assess growth in the learner’s mental model through measures of gameplay behavior. We have designed and developed the instructional game Selene: A Lunar Construction GaME and a suite of assessment tools that includes the Timed Report. We set the game within an interstitial, online D.D. Reese (*) • R.J. Seward • A. Harrison • L. McFarland Center for Educational Technologies, Wheeling Jesuit University, 316 Washington Ave., Wheeling, WV 26003, USA e-mail: debbie@cet.edu; rjseward@cet.edu; andrew@cet.edu; lisamc@cet.edu B.G. Tabachnick Department of Psychology, California State University, 18111 Nordhoff St., Northridge, CA 91330, USA e-mail: btabachnick@csun.edu B.A. Hitt Serenity Hills Informatics LLC, 2217 Haclett Ave., Wheeling, WV 26003, USA e-mail: ben@serenityhill.info Chapter 9 Timed Report Measures Learning: Game-Based Embedded Assessment Debbie Denise Reese, Ralph J. Seward, Barbara G. Tabachnick, Ben A. Hitt, Andrew Harrison, and Lisa Mcfarland