Abramovich, S., Higashi, R., Hunkele, T., Schunn, C., & Shoop, R. (2011). An Achievement System to Increase Achievement Motivation. Paper presented at the games learning society 7.0, Madison, WI.
Alberts, B. (2010). An education that inspires. Science, 330(6003), 427.
Anderson, J. R., Corbett, A. T., Koedinger, K. R., & Pelletier, R. (1995). Cognitive tutors: Lessons learned. The Journal of the Learning Sciences, 4(2), 167–207.
Beal, C., Qu, L., & Lee, H. (2008). Mathematics motivation and achievement as predictors of high school students’ guessing and help-seeking with instructional software. Journal of Computer Assisted Learning, 24(6), 507–514.
Clark, R. E., Howard, K., & Early, S. (2006). Motivational challenges experienced in highly complex learning environments. In J. Elen & R. E. Clark (Eds.), Handling complexity in learning environments: Theory and research (pp. 27–43). Oxford: Elsevier.
Davidson CN (2011). Could badges for lifelong learning be our tipping point? Retrieved November 1, 2011, from http://hastac.org/blogs/cathy-davidson/2011/11/14/could-badges-lifelong-learning-be-our-tipping-point.
Deci, E. L., Koestner, R., & Ryan, R. M. (1999). A meta-analytic review of experiments examining the effects of extrinsic rewards on intrinsic motivation. Psychological Bulletin, 125(6), 627.
Deci, E. L., Koestner, R., & Ryan, R. M. (2001). Extrinsic rewards and intrinsic motivation in education: Reconsidered once again. Review of Educational Research, 71(1), 1.
Dickey, M. (2005). Engaging by design: How engagement strategies in popular computer and video games can inform instructional design. Educational Technology Research and Development, 53(2), 67–83.
Dochy, F., Segers, M., & Buehl, M. M. (1999). The relation between assessment practices and outcomes of studies: The case of research on prior knowledge. Review of Educational Research, 69(2), 145–186.
Elliot, A. J. (1999). Approach and avoidance motivation and achievement goals. Educational psychologist, 34(3), 169–189.
Elliot, A. J., Cury, F., Fryer, J. W., & Huguet, P. (2006). Achievement goals, self-handicapping, and performance attainment: A mediational analysis. Journal of Sport and Exercise Psychology, 28, 344–361.
Elliott, A. J., Shell, M. M., Henry, K. B., & Maier, M. A. (2005). Achievement goals, performance contingencies, and performance attainment: An experimental test. Journal of Educational Psychology, 97(4), 630.
Midgley, C., Maehr, M. L., Hruda, L. Z., Anderman, E., Anderman, L., Freeman, K. E., et al. (2000). Manual for the patterns of adaptive learning scales (PALS). Ann Arbor: University of Michigan.
Pajares, F., Britner, S. L., & Valiante, G. (2000). Relation between achievement goals and self-beliefs of middle school students in writing and science. Contemporary Educational Psychology, 25(4), 406–422.
Peer 2 Peer University, & Mozilla Foundation. (2011). An open badge system framework. Retrieved July 14, 2011, from http://dmlcentral.net/resources/4440.
Pintrich, P. R. (2003). A motivational science perspective on the role of student motivation in learning and teaching contexts. Journal of Educational Psychology, 95(4), 667–686.
Shepard, L. A. (2000). The role of assessment in a learning culture. Educational Researcher, 29(7), 4–14.
Silk, E. M., Higashi, R., Shoop, R., & Schunn, C. D. (2010). Designing technology activities that teach mathematics. The Technology Teacher, 69(4), 21–27.
Stiggins, R. J. (2002). Assessment crisis: The absence of assessment for learning. Phi Delta Kappan, 83(10), 758–765.
Stiggins, R. J. (2005). From formative assessment to assessment for learning: A path to success in standards-based schools. The Phi Delta Kappan, 87(4), 324–328.
Weaver R & Junker B (2004). Model specification for cognitive assessment of proportional reasoning: Department of Statistics Technical Report.
Wigfield, A. (1994). Expectancy-value theory of achievement motivation: A developmental perspective. Educational Psychology Review, 6(1), 49–78.
Wigfield, A., & Eccles, J. S. (2000). Expectancy-value theory of achievement motivation. Contemporary Educational Psychology, 25(1), 68–81.
Wolters, C. A. (2004). Advancing achievement goal theory: Using goal structures and goal orientations to predict students’ motivation, cognition, and achievement. Journal of Educational Psychology, 96(2), 236.