Long practice periods were not much less favorable than short ones in addition practice, with evidence favoring the longer periods¶

Claim · All claims
Evidence · 1 study · causal r2 · q2
Currency · newest study 1914 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Comparison of A groups (double-length periods) with B groups (shorter periods), equated for initial ability, showed the short periods were certainly not much more favorable than the longer periods. → H. H. Hahn and E. L. Thorndike 1914

Evidence¶

H. H. Hahn and E. L. Thorndike 1914¶

H. H. Hahn and E. L. Thorndike. (1914). Some Results of Practice in Addition Under School Conditions. The Journal of Educational Psychology, Volume V, Number 2. https://www.google.com/search?q=Hahn+Thorndike+1914+Some+Results+of+Practice+in+Addition+Under+School+Conditions

q2 · i? · causal · r2

Comparison of long-period A groups with short-period B groups in each grade, using Tables 2 and 3 with pupils of equal initial ability selected by dropping the best adders from A groups and the worst from B groups. Advantages of the A group by the first scoring method were 8.2, 0, 1.4 and 9.8 for grades 7, 6, 5 and 4.

"On the whole we may safely say that in this experiment the short periods were certainly not much more favorable than the longer periods, the evidence, though not secure, being in favor of the longer periods."

Discussion¶

Related Claims¶

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