The study's conclusions rest on only sixty-five individually tested unretarded cases, limiting generalization¶

Claim · All claims
Evidence · 1 study · associational r1 · q2
Currency · newest study 1910 · checked against its sources 2026-10-24 (automated, 1 of 1 entry) · not reviewed by a person

Subclaims¶

q2 i? The number of children tested was too small for sweeping generalizations: eighty children in all, ten per group, of whom fifteen were retarded, leaving sixty-five cases on which conclusions were drawn. → Carrie Bansom Squire 1910

Evidence¶

Carrie Bansom Squire 1910¶

Carrie Bansom Squire. (1910). Graded Mental Tests. Part III. Judgment, Conclusions and Summary of Results. The Journal of Educational Psychology. https://eric.ed.gov/?q=Graded+Mental+Tests+Squire

q2 · i? · associational · r1

The article's stated limitation: with "only eighty children in all, ten for each group", and fifteen retarded, conclusions rest on sixty-five individually tested cases, which the author argues are more reliable than a larger group-tested sample.

"The number of children tested was too small to be made the basis of sweeping generalizations. There were only eighty children in all, ten for each group; of these eighty, fifteen were found upon closer examination of all their school records to belong to the retarded class. So the con- clusions are drawn from sixty-five cases."

Discussion¶

Related Claims¶

• The test battery showed striking parallelism between growth of intelligence and age in unretarded children, with leaps at grade transitions — related
• 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
• Children judge correctly at a high rate on two-alternative concrete judgment items even in the youngest age groups — related
• Errors of assent to suggestion outnumber errors of dissent in children's selective judgment, and independent judgment develops through three stages — related
• Lengthening the interval between dictated digits markedly lowered children's memory span scores on one testing day — related
• Test-retest correlations of memory span are low, questioning the validity of a single memory span test — 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
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