American Chemical Society
Division of Chemical Education
Composite Norms
Physical Chemistry (Quantum Mechanics) Exam 1995
Score	Percentile	Score	Percentile	Score	Percentile
40	100	26	79	12	4
39	100	25	75	11	2
38	100	24	69	10	1
37	99	23	63	9	0
36	99	22	56	8	0
35	98	21	49	7	0
34	97	20	42	6	0
33	96	19	36	5	0
32	95	18	30	4	0
31	93	17	23	3	0
30	90	16	16	2	0
29	88	15	11	1	0
28	86	14	8
27	83	13	5
Mean		21.58
Std deviation		5.8
Median		21.14
KR-21 rel		0.72
Std error/meas		3.05