Challenges of Standards-Based Grading

Here is the link to Guskey's article on the "cons" of standards-based grading. 

http://www.indianriverschools.org/SiteDirectory/ProfDev/Grading%20Practices%20Documents/Reporting%20Grades/The%20Challenge%20of%20Standards-Based%20Grading.pdf

*This is a beautifully written document that looks at the negative impacts of standards-based grading.  It lists four specific reasons as to why it would be difficult to switch to this type of system as well as challenges it presents.