Feeble-minded children show the same amount of improvement with practice as normal children of the same mental age and initial ability on a form sorting task¶

Claim · All claims
Evidence · 1 study · causal r1 · q3
Currency · newest study 1915 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Feeble-minded children improved with practice on a geometrical form sorting task to the same degree as normal children of the same mental age and initial ability, with absolute improvement averaging 54 wads (about 45%) in each group. → Woodrow 1915

Evidence¶

Woodrow 1915¶

Woodrow, H. (1915). Practice and transference in normal and feeble-minded children. The Journal of Educational Psychology. https://scholar.google.com/scholar?q=%22Practice+and+Transference+in+Normal+and+Feeble-Minded+Children%22

q3 · i? · causal · r1

Controlled four-group experiment (feeble-minded practice n=20, feeble-minded control n=17, normal practice n=16, normal control n=13) with thirteen days of practice on a form sorting test. "For each group, the absolute improvement in average ability is 54, or about 45%." Average percentage improvement was 49 for feeble-minded and 46 for normal children.

"feeble-minded children were found to show the same amount of improvement and to improve in accordance with essentially the same practice curve as normal children of the same mental age and the same initial ability"

Discussion¶

Related Claims¶

• Correlation between initial ability and absolute improvement is negative but very small and unreliable in both groups — related
• Children below average in initial ability improve relatively more with practice than those above average, in both feeble-minded and normal groups — related