她的PSAT10 percentile 比ACT percentile 高，我的理解是因为PSAT10 是在10年级的这个pool 里， 而ACT 是9年级考的，是在所有学生的pool 里。
PSAT10 percentile:
https://collegereadiness.collegeboard.org/pdf/psat-10-understanding-scores-2017.pdf
ACT percentile:
| Score | English Percentiles | Math Percentiles | Reading Percentiles | Science Percentiles | Composite Percentiles |
|
36 |
100 |
100 |
100 |
100 |
100 |
|
35 |
99 |
99 |
99 |
99 |
99 |
|
34 |
98 |
99 |
98 |
99 |
99 |
|
33 |
96 |
98 |
96 |
98 |
99 |
|
32 |
95 |
97 |
94 |
97 |
97 |
|
31 |
93 |
96 |
91 |
96 |
96 |
|
30 |
91 |
95 |
89 |
94 |
94 |
|
29 |
89 |
93 |
86 |
93 |
92 |
|
28 |
87 |
91 |
83 |
92 |
89 |
|
27 |
85 |
88 |
81 |
89 |
86 |
|
26 |
82 |
84 |
77 |
86 |
83 |
|
25 |
79 |
78 |
74 |
83 |
79 |
|
24 |
74 |
74 |
71 |
76 |
74 |
|
23 |
69 |
68 |
66 |
70 |
69 |
|
22 |
64 |
62 |
60 |
63 |
63 |
|
21 |
58 |
58 |
55 |
56 |
57 |
|
20 |
52 |
54 |
48 |
49 |
50 |
|
19 |
46 |
50 |
42 |
41 |
44 |
|
18 |
41 |
45 |
36 |
33 |
37 |
|
17 |
37 |
38 |
31 |
27 |
31 |
|
16 |
33 |
28 |
26 |
22 |
24 |
|
15 |
28 |
16 |
21 |
17 |
18 |
|
14 |
21 |
7 |
16 |
13 |
13 |
|
13 |
17 |
3 |
11 |
9 |
8 |
|
12 |
13 |
1 |
7 |
6 |
4 |
|
11 |
10 |
1 |
4 |
4 |
1 |
|
10 |
7 |
1 |
2 |
2 |
1 |
|
9 |
4 |
1 |
1 |
1 |
1 |
|
8 |
2 |
1 |
1 |
1 |
1 |
|
7 |
1 |
1 |
1 |
1 |
1 |
|
6 |
1 |
1 |
1 |
1 |
1 |
|
5 |
1 |
1 |
1 |
1 |
1 |
|
4 |
1 |
1 |
1 |
1 |
1 |
|
3 |
1 |
1 |
1 |
1 |
1 |
|
2 |
1 |
1 |
1 |
1 |
1 |
|
1 |
1 |
1 |
1 |
1 |
1 |
Percentile rankings via ACT.org
