The treated class showed greater gains in tapping endurance, leading in endurance on both hands by the second test despite greater initial fatigue¶

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? Although the treated class showed greater fatigue in the October tapping test, it showed less fatigue by May, gaining 2.9% in endurance over the untreated class on the left hand (and 2.4% on the right). → 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 tables for the fatigue index of the tapping test (Whipple's Test 10), computed as the ratio of last-15-second decrease to first-15-second total over a 60-second trial. Left-hand medians fell from 17.5% to 13.5% in Room 21 versus 15.1% to 14% in Room 18. Percents are descriptive; no test statistic is printed.

"As with the right hand, although Room 21 shows greater fatigue in the early test, it shows .5% less in the second, and thus shows a gain in endurance of 2.9% over Room 18. As pointed out above, the fact that Room 21 leads in every case in total number of taps makes the lead in endurance the more conspicuous."

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
• The two fifth-grade classes were equivalent at baseline: Room 18 led on half of the ten non-physical tests before treatment — related