Norms-ACS First Term General Chemistry Exam Form 2009

based on the scores of 3827 students in 34 colleges.

Score  Percentile  Score  Percentile  Score  Percentile
70    100          44     72          18      3
69    100          43     69          17      2
68    100          42     66          16      1
67    100          41     63          15      1
66    100          40     60          14      1
65    100          39     58          13      0
64     99          38     54          12      0
63     99          37     51          11      0
62     99          36     48          10      0
61     98          35     45           9      0
60     98          34     42           8      0
59     97          33     39           7      0
58     96          32     36           6      0
57     95          31     33           5      0
56     94          30     30           4      0
55     93          29     27           3      0
54     92          28     24           2      0
53     91          27     21           1      0
52     89          26     18         
51     87          25     16         
50     85          24     14         
49     83          23     12         Mean           37.13
48     81          22      9         Std deviation  11.39
47     79          21      7         Median         36.1
46     77          20      6         KR-21 rel       0.88
45     74          19      4         Std error/meas  3.98