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Dick Heckathorn wrote:
So I looked at how I graded to see if I was too hard a grader. For four or five years of class data, I took the 6 6-weeks grades and made a "GPA" for each student. I then determined an average "GPA" for each class. Next, I went to each student folder and obtained their GPA for all classes taken prior to taking the physics class. I likewise found an average GPA for the class. The result.....
My physics class "GPA" was from 0.6 to 1.1 lower. Relative to the rest of the teachers in the school, I was too hard a grader. Why, I thought. I think it was because I was taught to use the bell curve. Yet, I did not have a school wide student body. I played around, adjusting my physics grades. Why, I don't remember, I changed my bell curve to the center being a 'B' rather than a 'C'. My class GPA then fell in line with the student's GPA.