Chem 1061 ACS Standardized Exam Score Conversion

The table below shows how raw scores on the exam were converted to scaled exam scores that were recorded as the final exam scores. The ACS standardized final exam has 70 questions, two of which were from later chapters in the text, and were not covered in our course. To determine your percentile ranking, look up the score you received on the final exam, then find your percentile ranking from the 2nd column. In short, students in the 80th to 100th percentile were assigned an "A" score on the final, the 60th to 79th percentile were assigned a "B", the 40th to 59th percentile were assigned a "C", the 20th to 39th percentile were assigned a "D", and the 0th to 19th percentile were assigned an "F".

In the event you are unfamiliar with how percentiles work, a percentile ranking of 84 means that you scored higher than 84% of the students on the national norms and a percentile ranking of 25 means that you scored higher than 25% of the students taking the same exam on the national norms. You should be happy to know that the Professor Lund's Fall Semester 2006 class did very well as a whole. The top raw score was a 65 - in the 100th percentile! The median raw score was a 45.5 - which is the 65th percentile. The average raw score was a 44.5 - which is the 62nd percentile. Congratulations on making my inaugural administration of the ACS standardized exam a great success!

Raw Score	Percentile	Percentage	Scaled Score
A
68	100	100	200
67	100	100	200
66	100	100	200
65	100	100	200
64	100	100	200
63	99	99.5	199
62	99	99.5	199
61	98	99	198
60	97	98.5	197
59	96	98	196
58	95	97.5	195
57	94	97	194
56	92	96	192
55	90	95	190
54	88	94	188
53	86	93	186
52	84	92	184
51	82	91	182
B
50	78	89	178
49	74	87	174
48	72	86	172
47	69	84.5	169
46	66	83	166
45	63	81.5	163
44	60	80	160
C
43	57	78.5	157
42	54	77	154
41	51	75.5	151
40	48	74	148
39	45	72.5	145
38	41	70.5	141
D
37	38	69	138
36	36	68	136
35	33	66.5	133
34	30	65	130
33	27	63.5	127
32	25	62.5	125
31	22	61	122
F
30	19	59.5	119
29	17	58	116
28	15	56	112
27	13	54	108
26	11	52	104
25	9	50	100
24	8	49	98
23	6	47	94
22	5	46	92
21	4	45	90
20	3	44	88
19	2	43	86
18	2	42	84
17	1	41	82
16	1	40	80
15	1	39	78
14	0	38	76
13	0	36	72
12	0	34	68
11	0	31	62
10	0	28	56
9	0	25	50
8	0	23	46
7	0	20	40
6	0	17	34
5	0	14	28
4	0	11	22
3	0	8	16
2	0	5	10
1	0	2	4
0	0	0	0

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