Combined Percentile Index
Figure the class rank percentile by dividing class rank by class size, then subtract that percentile from 100 percent.
Using the Test Score Percentile Chart given below, find the appropriate ACT/SAT composite test score percentile.
Add it to the class rank percentile to get the Combined Percentile Index.
For example:
|
Class Rank = 6
|
ACT Composite Score = 19
|
|
Class Size = 30
|
ACT Percentile = 42
|
1 - (6 divided by 30) = .80 or 80 percentile
Class Rank percentile = 80 percentile
Combined Percentile Index = 80 + 42 = 122
Combined Percentile Index of 122 exceeds the minimum combined percentile index of 100, so the student would be admissible to Northwest if core curriculum and GPA requirements were met.
Test Score Percentile Chart
|
Composite ACT
|
Redesigned SAT |
SAT I
|
Percentile
|
|
36
|
1600
|
1600
|
99
|
|
35
|
1560-1590
|
1540-1590
|
99
|
|
34
|
1520-1550 |
1490-1530
|
99
|
|
33
|
1490-1510 |
1440-1480
|
99
|
|
32
|
1450-1480
|
1400-1430
|
99
|
|
31
|
1420-1440 |
1360-1390
|
99
|
|
30
|
1390-1410 |
1330-1350
|
98
|
|
29
|
1350-1380 |
1290-1320
|
96
|
|
28
|
1310-1340 |
1250-1280
|
94
|
|
27
|
1280-1300 |
1210-1240
|
91
|
|
26
|
1240-1270 |
1170-1200
|
87
|
|
25
|
1200-1230 |
1130-1160
|
83
|
|
24
|
1160-1190 |
1090-1120
|
78
|
|
23
|
1130-1150 |
1050-1080
|
72
|
|
22
|
1100-1120 |
1020-1040
|
66
|
|
21
|
1060-1090 |
980-1010
|
58
|
|
20
|
1020-1050 |
940-970
|
51
|
|
19
|
980-1010 |
900-930
|
42
|
|
18
|
940-970 |
860-890
|
34
|
|
17
|
900-930 |
820-850
|
26
|
|
16
|
860-890 |
770-810
|
19
|
|
15
|
810-850 |
720-760
|
13
|
|
14
|
760-800 |
670-710
|
8
|
|
13
|
720-750 |
620-660
|
4
|
|
12
|
630-710 |
560-610
|
2
|
|
11
|
560-620 |
510-550
|
1
|
(NOTE: Redesigned SAT effective beginning March 2016; SAT I Exam effective April 1995 - February 2016)
Redesigned SAT score is a combination of SAT Evidence-Based Reading and Writing and SAT Math scores.
SAT I score is a combination of SAT Critical Reading and SAT Mathematics scores.