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TABLE I

DISTRIBUTION OF I.Q. FOR EACH ORDINAL NUMBER
Ordinal Number 0-9 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 100-109 110-19 120-29 130-39 n m σ
1 3 6 11 11 22 38 81 100 87 73 40 21 5 2 500 76.900 22.4
2 1 6 6 9 12 19 58 51 62 48 18 7 3 3 303 76.056 22.3
3 1 1 7 6 9 19 40 46 31 27 20 6 2..... 215 75.093 21.8
4 1 4 6 5 4 20 26 26 24 17 11 6 2..... 152 72.763 24.3
5..... 2 5 1 7 6 9 19 18 8 2 3..... ..... 80 71.125 22.7
6..... 1..... 2 2 7 13 5 5 5 1..... ..... 1 42 69.524 21.0
7..... ..... 2..... 1 2 2 6 5 2 1..... 1..... 22 74.091 23.0
8..... 1..... 3 1 1 2 2 3 2 2..... ..... ..... 17 67.941 26.5
9 1..... ..... ..... ..... 1 1 1 2 4..... 1..... ..... 11 78.636 28.1
10..... ..... ..... ..... 2 1 1..... ..... 2..... ..... ..... ..... 6........ ......
11..... ..... ..... ..... ..... 1..... ..... ..... ..... ...... ..... ..... ..... 1........ ......
12..... ..... ..... ..... ..... ..... 1..... ..... 1...... ..... ..... ..... 2........ ......
13 * ..... ..... 1..... ..... ..... ..... 1 1..... ...... ..... ..... ..... 3........ ......
Unknown 1..... ..... ..... 3 6 11 25 11 13 3 2 1..... 76 77.632 18.2
Total 8 21 38 37 63 121 245 282 249 202 98 46 14 6 1,430........ ......
*13 and over.

-3-

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Publication Information: Book Title: Order of Birth, Parent-Age and Intelligence. Contributors: L. L. Thurstone - author, Richard L. Jenkins - author. Publisher: University of Chicago Press. Place of Publication: Chicago. Publication Year: 1931. Page Number: 3.
    
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