Grading:
The raw scores earned on each of the exams in this course will be converted to Standard
T-Scores. The Standard T-Score is computed as follows:
T = [(x-X/s) •10] + 77
where:
x = your raw test score
X = the class mean score = Σ x/N
N = number of test scores
σ = standard deviation = [Σ (x-X)2/(N-1)]1/2
Using Standard T-Scores allows an effective averaging of grades without introducing a
bias in favor of tests with the greatest standard deviations. Since it is based on a normal
(Gaussian) distribution, it generally represents the fairest way of grading. (Nearly all
national exams such as the SAT, MCAT, and GRE use a similar form of Standard T-
Scores)
Your final course grade will be calculated as 30% of your best midterm T-score, 30% of
your second best midterm T-score and 40% of your final exam T-score. There will be
three midterms during the semester, so this means that your lowest midterm exam T-
score will be dropped OR you will be able to miss one midterm for any reason with no
penalty.* The following conversion table will be used to calculated final course grades:
T-Score .............................Letter Grade
93.0000 < T ..........................A
90.0000 < T < 93.0000 ..............A-
87.0000 < T < 90.0000 ..............B+
83.0000 < T < 87.0000 ..............B
80.0000 < T < 83.0000 ..............B-
77.0000 < T < 80.0000 ..............C+
73.0000 < T < 77.0000 ..............C
70.0000 < T < 73.0000 ..............C-
67.0000 < T < 70.0000 ..............D+
63.0000 < T < 67.0000 ..............D
