ABCDEFGHIJKLMNOPQRSTUVWXYZ
1
2
Part 0: LD prevalence research
3
4
5
6
Dyslexia
7
Source
Data PointContext
8
Yale20%% of population with dyslexia
9
International Dyslexia Org18%% of population with dyslexia (15-20%)
10
11
Average19%Rounding to 20% for simplicity
12
13
Dysgraphia
14
Source
Data PointContext
15
Cleveland Clinic13%% of population with dysgraphia (5-20%)
16
NCBI10%
% of children with difficulty writing (10-30%)
17
18
 Average11%Round to 10% for simplicity
19
20
Dyscalculia
21
Source
Data PointContext
22
NCBI5%% of population with dyscalculia (3-7%)
23
OECD5%% of population with dyscalculia (3-6%)
24
25
Rounded Average5%
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100