ABSTRACT
The contingency table printed below was obtained by giving Binet-Simon tests and scholastic tests to 427 children in London schools. https://www.niso.org/standards/z39-96/ns/oasis-exchange/table">
Mental Ratio A
Total
A1
A2
A3
A4
A5
85 —
90 —
95 —
100 —
105 —
https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315009810/61a4cc26-c726-4977-a558-75fbf99de4a5/content/in_page137_01_B.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/>
13
16
7
2
1
39
(B1)
12
22
15
19
5
73
(B2)
10
28
41
35
23
137
(B3)
4
17
35
44
27
127
(B4)
1
5
9
15
21
51
(B5)
Total
40
88
107
115
77
427
=N
(A1)
(A2)
(A3)
(A4)
(A5)
