By running the Flubaroo script, you can automatically grade a test given on Google forms.
Flubaroo can be found in the script gallery. FOr directions on using Flubaroo, see this resource:
http://bit.ly/15UMcsJYou create the answer key and Flubaroo grades multiple choice or short answer questions. The results are recorded in a second sheet. Color coding allows the teacher to analyze the results.
If students put their email addresses into the form (teacher must create a question for it), results can be emailed to the students, including answers, if wanted.