On the substitution learning test the treated class showed a larger saving of time (101.0 vs. 91.1 seconds) between first and last sheets¶

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 1913 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? On the substitution (learning) test, the treated class's "learning power" — time saved between the first sheet first taken and the fourth sheet last taken — was 101.0 seconds versus 91.1 seconds for the untreated class. → Emma Kohnky 1913

Evidence¶

Emma Kohnky 1913¶

Emma Kohnky, M.A. (1913). Preliminary Study of the Effect of Dental Treatment upon the Physical and Mental Efficiency of School Children. The Journal of Educational Psychology. https://www.jstor.org/journal/jeducpsych

q2 · i? · causal · r1

Results table for the substitution test (Whipple's Test 37), measuring time needed to approximate 100% accuracy. Room 21 needed 206.5" in October and 104.9" in May on the key sheets; Room 18 needed 201.6" and 110.5". Descriptive medians; no significance test is printed.

"Room 21 leads, with a learning power expressed by a saving of 101.6", compared with 91.1" in Room 18."

Discussion¶

Related Claims¶

• After one school year, the dental-treatment class led in nine of ten psychological and psycho-physical tests, having led in only five of ten before treatment — related
• On the seven-digit rote memory test the treated class gained 10.8% over its own first record while the untreated class gained none — related
• On the cancellation test the untreated class led before and after treatment, an exception attributed to the time limit — related