Results with the Binet Tests for Mental Ages XI and XII
(1908 Series)
| No. of Cases | Pass tests XII or better | Pass tests XI or better | ||||||
|---|---|---|---|---|---|---|---|---|
| Life-Age | Life-Age | Life-Ages | ||||||
| Investigators | 12 | 11 | 12 | 11 | 12 | |||
| No. | No. | No. | % | No. | % | No. | % | |
| Binet and Simon (School in poor quarter) | ||||||||
| 1908 study | 11 | 2 | 18 | 7 | 64 | |||
| 20 | 13 | 65 | ||||||
| 1911 study | 23 | 15[[13]] | 65 | |||||
| Bloch and Preiss | 21 | 21 | 100 | 21 | 100 | |||
| (Only pupils up to grade) | 15 | 13 | 87 | |||||
| Bobertag | 33 | 19 | 57 | 29 | 88 | |||
| (Pupils averaged satisfactory) | 34 | 18 | 53 | |||||
| Dougherty | 46 | 9 | 20 | 36 | 78 | |||
| (Includes 8th grade) | 44 | 22 | 50 | |||||
| Goddard | 144 | 39 | 27 | 75 | 52 | |||
| (Includes none above 6th grade) | 166 | 73 | 44 | |||||
| Johnston | 24 | 6 | 25 | ? | ||||
| (Includes some high school pupils) | 29 | 7 | 24 | |||||
| Terman and Childs | 35 | 3 | 9 | 29 | 83 | |||
| (Includes a few in 8th grade) | 44 | 14 | 32 | |||||
| Rogers and McIntyre | 20 | 1 | 5 | 5 | 25 | |||
| 27 | 6 | 22 | ||||||
| Totals | 357 | 379 | 100 | 166 | 217? | |||
Binet and Simon. L'Annee Psychol., 1908, 14: 1911, 17: 145-200.
Bloch and Preiss. Zeits. f. angew. Psychol., 1912, 6: 539-547.
Bobertag. Zeits. f. angew. Psychol., 1912, 6: 495-538.
Dougherty. J. of Educ. Psychol., 1913, 4: 338-352.
Goddard. Ped. Sem., 1911, 18: 232-259.
Johnston. J. of Exper. Ped., 1911, 1: 24-31.
Terman and Childs. J. of Educ. Psychol., 1912, 3: (Feb.-May).