Physical measures showed no appreciable difference in height and a larger weight gain in the untreated class¶

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? Height showed no appreciable difference between classes, and the untreated class led in weight gain by 3.25 lbs despite nearly identical October medians. → 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

Physical tests taken by the school's physical director: standing height and weight in October and May. Room 18's median weight rose from 67.5 to 76.5 lbs (gain 9 lbs) against Room 21's 67.25 to 73 lbs (gain 5.75 lbs). Height gains were 2.9 and 2.5 inches. Descriptive medians only.

"Here we find that while the median for the two classes was almost identical, in October-Room 18 leads in gain by 3.25 lbs."

Discussion¶

Learner Variables¶

• Physical Well-Being — outcome: instruction changes it

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
• Groups one year ahead of normal grade increase more rapidly in both weight and height than normal groups of the same age, with one exception — related
• Group averages are misleading when applied to individual pupils because of extensive overlapping in weight and height across grades — related