She Blinded Me With Science






         I should have worn goggles.

January 7, 2009

Chemistry Midterm Scores, Take 2

Filed under: Chemistry — Ms. L @ 9:24 am



Taking into account the additional questions that we have found that were keyed wrong, the scores are now posted below.

Q: Why didn’t my grade go up 5 points?
A: The curve was calculated based on the original raw score that you received. If originally the class average was a 60/90 correct, it would be a 66. Which would mean that there would need to be a hefty curve to bump the average up to a C letter grade.

However, as soon as we recalculate it to be a 60/84 (because the miskeyed questions are now removed from the total), the class average becomes a 71. It now needs less of a bump to bring it up to a C letter grade.

As such, the increase in your raw score from removing the miskeyed questions created a reduction in the curve, resulting in almost no change to your after-curve number grade.

Chemistry Midterm Grades, Take 2
Click the picture to enlarge.

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