The relations of general intelligence to certain mental and physical traits / Cyrus D. Mead.

  • Mead, Cyrus D. (Cyrus De Witt)
Date:
1916
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Licence: Public Domain Mark

Credit: The relations of general intelligence to certain mental and physical traits / Cyrus D. Mead. Source: Wellcome Collection.

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    common ‘‘idiot.”! In the graphs, two groups of the mental defectives show, one group constituting the moron class, the other group including all grades of mental defect. TABLE X1V—Continued. Feeble-Minded Children Boys Girls LCR | RLDAE SALT WNT RICLIRGZRGTERT ORCERESRIRTRSGENCT (GaRARONRURIERT EIRENE“ Ueetiorarmmmn mmm (Reammmennamaranrcancmecomansammemnereaener ee ere eer ————————— ese ee eee OO EO —_ | | Bie BUG OU ey game: Tah 0 9 a 8 | 12 17.8 | 8.6 19)8).1,6.8 0 2) N16 1 15.5] 1.5 PL ein G4 bl2a. Gt) Ba 1G 16 2.6 15.2] 3.4 PAA Wir Oa Lape Oo to aad Ps) Geo b. oko Cap 8. 23.8 | 8.8 PE be eo Be OG) bi 29.5 p12 4.0 20a 6.7.1 27.38: 1)'6.8 12} 16] 39.6) 12.8] 36.9] 11.4] 11] 29.1 ]11.1] 26 10.5 13/15] 44.5] 12.7] 40.6]11.5] 8] 34 12S Mi aa ak Ot | 14.; 20; 51.9] 16.7 |, 52.2) 16.6] 15] 52.1] 9 48.7} 11.8 £5} 19) 61.5.) 24:6} 59.5 | 21 9] 60.4) 8.8] 53.5] 9.9 16; 12] 66.3; 18.2 | 64.5 ]17.8) 14] 58.8] 15.5] 55.3] 13.4 7 Van! Be a 20.8 | 74.2 | 20.7 | 14] 57.7 | 16.3 | 50.7] 12.4 18} 6] 106.5] 15.8 | 95.3 | 20 11 | 638.7 [11.7] 55.6 [| 9.1 19} 6] 91.7 | 34.7| 91.8] 31.5 | 6] 68.8 | 26.51! 66.5] 21.3 20; 8] 99 25 86.6 | 24.5] 138} 58.4] 16.8] 50.2 | 12.5 Zit) +) SL.9) |) 28,9-4 > 75.6 1 18.354.) 4.) 63 W2 Be 15 22; 5| 85.4] 16.8}. 85.4] 138.2] 2] 56 2 59.5 | 2.5 Beak Post Sosa VecB | 29 Se rat Oes Or boc eae. be ee 7 25 | 5] 80.2); 41 74 27.6 26a} 32 | 80.2 | 29.5] 82.6] 26.6 over To- |233 129 The lines for the Caldwell boys appear higher at each age, excepting seven, than the lines for Chicago school boys.2. The former boys were without doubt a more select group as a whole. No mention is made by Smedley that praise or emulation entered as a factor in raising the individual record of the Chicago school boys. Binet (2) found this added three kilograms. The question of the instrument registering low, thus possibly putting the defective children at a disadvantage in comparison with the Chicago children, does not affect purposes of comparison; for the divergence is more marked between the Caldwell and defective groups, taken with the same instrument, than between the Chicago and defective children. 1 For the mental classification of such grades of defect, see footnote on p. 31. 2 The instrument used by me registered too low. The results for it when placed in a vise, a 32.5 pound weight being used were: Weight placed as “lightly”? as possible on top: 28-28-28-28 pounds. Weight hung below in 13.5 ounce carriage: 24-23-25-25 pounds.
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