1. Achieve (2007). Closing the expectations gap: An annual 50-state progress report on the alignment of high school policies with the demands of college and work. Retrieved July 1, 2011 from http://www.achieve.org/node/844.
2. The toolbox revisited: Paths to degree completion from high school through college.;Adelman,2006
3. Introduction to measurement theory;Allen,2002
4. American Psychological Association (2011). How do I get my students over their alternative conceptions (misconceptions) for learning. Retrieved December 13, 2011 from http://www.apa.org/education/k12/misconceptions.aspx.
5. Entrenched beliefs, inconsistent information and knowledge change;Brewer,1991