Exceptional Binet-Simon test outcomes were rare (4 per cent) and mostly attributable to error in adult judgments rather than the scale¶

Claim · All claims
Evidence · 1 study · associational r1 · q2
Currency · newest study 1914 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Of 194 cases, thirty were exceptional; nineteen were placed by the principal in the group the tests indicated, corroborating the scale. → Carl C. Brigham 1914

Evidence¶

Carl C. Brigham 1914¶

Carl C. Brigham. (1914). An Experimental Critique of the Binet-Simon Scale. The Journal of Educational Psychology. https://doi.org/10.1037/h0071183

q2 · i? · associational · r1

Individual-case analysis of the 194 teacher-judged cases: thirty exceptional cases were identified, of which nineteen were re-graded by the principal in the direction the tests indicated, three were under-age for grade, and the remaining eight — "4 per cent, of all the 194 cases" — had no obvious explanation and were attributed to judgment error.

"They constitute 4 per cent, of all the 194 cases treated above. Since the judgments of the teachers and the principal did not coin- cide within two groups in 9 per cent, of the cases, and since their judgments actually coincided in only 41 per cent, of the eases, the assumption is legitimate that the error of 4 per cent. is on the part of the judgment of the teacher and principal, and not the Binet-Simon scale."

Discussion¶

Related Claims¶

• The Binet-Simon scale accurately graded fairly minute individual differences in mental ability within same-age groups, as validated against teacher and principal judgments — related
• The Binet-Simon scale measured intelligence development from ages seven to eleven with at least 96 per cent efficiency under the study's conditions — related
• The twelve-year tests of the Binet-Simon scale were unsatisfactory, with several individual tests too difficult for the children tested — related
• The Binet scale can be understood and applied by the average teacher or school principal as readily as current pedagogical tests — related