American Chemical Society
Division of Chemical Education
Composite Norms
Biochemistry Exam 2007 - in two semester course
Score	Percentile	Score	Percentile	Score	Percentile
60	100	39	74	18	3
59	100	38	71	17	2
58	100	37	68	16	1
57	100	36	65	15	1
56	100	35	61	14	1
55	100	34	57	13	0
54	100	33	53	12	0
53	99	32	49	11	0
52	98	31	44	10	0
51	97	30	39	9	0
50	96	29	35	8	0
49	95	28	31	7	0
48	94	27	28	6	0
47	93	26	25	5	0
46	91	25	21	4	0
45	89	24	18	3	0
44	87	23	15	2	0
43	85	22	12	1	0
42	82	21	8
41	80	20	6
40	77	19	4
	Mean		32.92
	Std deviation		8.92
	Median		31.7
	KR-21 rel		0.83
	Std error/meas		3.71