88 Estimation of the General Intelligence of School Children 
TABLE XIV. 
Form and General Intelligence. 
Form. 
III 
IV c 
IV b 
IVa 
Vc 
Yb 
Va 
L. VI 
VI 
Totals 
4-8 
5 
I 
1 
3 
_ 
14 
9 
4 
2 
1 
2 
1 
2 
14 
10 
■2 
5 
6 
6 
4 
23 
11 
7 
9 
6 
6 
5 
11 
8 
9 
61 
12 
5 
6 
5 
5 
6 
5 
9 
5 
46 
18 
.3 
4 
7 
7 
4 
4 
6 
2 
37 
14 
5 
3 
4 
4 
1 
4 
21 
15 
2 
I 
2 
2 
1 
8 
16—19 
1 
1 
1 
1 
1 
4 
5 
14 
Totals 
25 
28 
30 
30 
29 
31 
30 
25 
10 
238 
TABLE XV. 
Age and Form. 
Age. 
10 
ii 
12 
13 
14 
15 
16 
27 
Totals 
Ill 
6 
4 
5 
6 
4 
25 
IV c 
1 
6 
3 
12 
6 
28 
IV b 
7 
9 
7 
3 
4 
30 
IVa 
3 
12 
8 
5 
2 
30 
Vc 
1 
5 
12 
7 
2 
2 
29 
V6 
G 
15 
4 
4 
1 
1 
31 
Va 
1 
3 
10 
13 
2 
1 
30 
L. VI 
2 
13 
9 
1 
25 
VI 
3 
1 
2 
4 
10 
Totals 
7 
22 
43 
72 
58 
22 
9 
5 
238 
Tables X to XV. The same methods have been employed with these as with 
the corresponding Tables of the earlier sets, and many of the remarks on Tables I 
to IX apply equally to these. 
Table XIII. Age and Intelligence. It is interesting to compare the mean 
intelligence at different ages in this Table and in Table IV. 
Age 10 11 12 13 14 15 10 17 Mean 
Intelligence, Table IV. 1T6 1T5 10-9 11-8 117 12'2 11-5 12-4 1177 
„ „ XIII. 11-5 11-5 117 11-6 12-0 12-2 10-9 14-6 11-80 
The drop at Age 16 which is specially marked in Table XIII is rather curious. 
Reference to the Table shows that of the 9 boys in the group several are near the 
lower end of the scale of intelligence, thus giving a low average to the group. 
The correlation ratio is 77 = "316, while a fourfold table gives r = •131. These, 
corrected for Form become "040, and — - 223 respectively, either showing, as in 
Table IV, that age has no effect in increasing the teacher's estimate of capacity. 
