American Chemical Society
Division of Chemical Education
Composite Norms
Second Term General Chemistry Exam 2006
Score	Percentile	Score	Percentile	Score	Percentile
70	100	46	74	22	7
69	100	45	71	21	6
68	100	44	68	20	5
67	100	43	65	19	3
66	100	42	62	18	2
65	100	41	60	17	2
64	100	40	57	16	1
63	100	39	54	15	1
62	99	38	51	14	0
61	99	37	47	13	0
60	99	36	44	12	0
59	98	35	41	11	0
58	97	34	38	10	0
57	96	33	35	9	0
56	95	32	32	8	0
55	94	31	30	7	0
54	93	30	27	6	0
53	91	29	24	5	0
52	89	28	22	4	0
51	87	27	19	3	0
50	85	26	17	2	0
49	82	25	14	1	0
48	80	24	11
47	77	23	9
Mean		37.9
Std deviation		10.93
Median		37.3
KR-21 rel		0.87
Std error/meas		3.99