American Chemical Society
Division of Chemical Education
Composite Norms
Advanced High School Chemistry Exam 1996
Score	Percentile	Score	Percentile	Score	Percentile
60	100	40	69	20	8
59	100	39	66	19	6
58	100	38	63	18	5
57	99	37	61	17	4
56	99	36	58	16	3
55	99	35	55	15	2
54	98	34	53	14	1
53	97	33	49	13	1
52	96	32	44	12	1
51	94	31	40	11	0
50	92	30	37	10	0
49	90	29	35	9	0
48	88	28	33	8	0
47	87	27	29	7	0
46	86	26	24	6	0
45	83	25	20	5	0
44	81	24	18	4	0
43	79	23	15	3	0
42	76	22	12	2	0
41	73	21	9	1	0
Mean		34.2
Std deviation		10.27
Median		33.25
KR-21 rel		0.88
Std error/meas		3.63