evograder.org
EvoGraderGrader is a free, online assessment tool for analyzing (grading) students' written explanations of evolutionary change based on the ACORNS instrument. Science education researchers, assessment experts, and computer programmers built Evo. View and save the Evo. And the journal article. Peer-reviewed research on Evo. Grader and ACORNS instrument. Allow Evograder to retain file for further research. Click Here to Download a Sample CSV Input File. Note: Please refer to the User Guide. See the User Guide.
http://www.evograder.org/