American Chemical Society
Division of Chemical Education
Composite Norms
Gerneral-Organic-Biochemistry Exam 2000
General Chemistry Sub-Test - based on scores from 740 students at 12 colleges
Scroll down to view the Organic and the Biochemistry Sub-Test.
Score	Percentile	Score	Percentile	Score	Percentile
60	100	40	85	20	9
59	100	39	82	19	7
58	100	38	80	18	5
57	100	37	75	17	4
56	100	36	71	16	2
55	100	35	68	15	1
54	100	34	65	14	1
53	100	33	61	13	1
52	100	32	55	12	0
51	99	31	49	11	0
50	99	30	44	10	0
49	98	29	39	9	0
48	97	28	35	8	0
47	96	27	32	7	0
46	95	26	27	6	0
45	94	25	23	5	0	Mean		31.34
44	93	24	20	4	0	Std deviation		8.24
43	91	23	16	3	0	Median		30.64
42	89	22	13	2	0	KR21 rel		0.79
41	87	21	11	1	0	Std error/meas		3.75
Organic Chemistry Sub-Test - based on scores from 608 students at 9 colleges
Score	Percentile	Score	Percentile	Score	Percentile
60	100	40	83	20	16
59	100	39	80	19	11
58	100	38	77	18	8
57	100	37	75	17	6
56	100	36	73	16	4
55	100	35	70	15	2
54	100	34	67	14	1
53	100	33	64	13	1
52	99	32	61	12	1
51	99	31	57	11	0
50	98	30	54	10	0
49	97	29	50	9	0
48	96	28	46	8	0
47	94	27	42	7	0
46	93	26	38	6	0
45	92	25	34	5	0	Mean		30.06
44	90	24	31	4	0	Std deviation		9.48
43	89	23	27	3	0	Median		28.52
42	87	22	23	2	0	KR21 rel		0.85
41	86	21	19	1	0	Std error/meas		3.71
Biochemistry Sub-Test - based on scores from 316 students at 8 colleges
Score	Percentile	Score	Percentile	Score	Percentile
60	100	40	84	20	11
59	100	39	82	19	8
58	100	38	79	18	4
57	100	37	77	17	3
56	99	36	74	16	1
55	99	35	69	15	1
54	99	34	65	14	1
53	98	33	62	13	1
52	98	32	58	12	0
51	97	31	53	11	0
50	96	30	49	10	0
49	95	29	45	9	0
48	95	28	41	8	0
47	94	27	37	7	0
46	94	26	33	6	0
45	93	25	29	5	0	Mean		31.02
44	91	24	24	4	0	Std deviation		9.04
43	89	23	20	3	0	Median		29.83
42	88	22	16	2	0	KR21 rel		0.83
41	85	21	13	1	0	Std error/meas		3.72