Growth measurements at age ten predict stature at sixteen within about 2.5 centimeters and IQ over the same period within 6.3 points¶

Claim · All claims
Evidence · 1 study (2 entries) · associational r? · q2
Currency · newest study 1922 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Stature at sixteen can be predicted from measurements taken at ten with a probable error of approximately 2.5 centimeters. → Gates 1922 q2 i? IQ can be predicted over the same age span with a probable error of estimate of 6.3 points. → Gates 1922 (2)

Evidence¶

Gates 1922¶

Gates, Arthur I. (1922). Educational psychology at the Princeton meeting of the American Psychological Association. The Journal of Educational Psychology. https://en.wikipedia.org/wiki/Journal_of_Educational_Psychology

q2 · i? · associational · r?

Conference report of consecutive individual measurements from Bird T. Baldwin and L. Stecher's Iowa research on mental and physical growth; the printed probable error of 2.5 centimeters is reported as printed.

"These workers have found it possible to predict the stature at sixteen years of age from the measurements secured at ten with a PE of approximately 2.5 centimeters."

Gates 1922 (2)¶

Gates, Arthur I. (1922). Educational psychology at the Princeton meeting of the American Psychological Association. The Journal of Educational Psychology. https://en.wikipedia.org/wiki/Journal_of_Educational_Psychology

q2 · i? · associational · r?

Same Iowa growth study reported at the meeting; the printed probable error of 6.3 IQ points is reported as printed, and the report notes similar growth curves for physical and mental traits.

"The IQ can be predicted over a similar period with a PE of estimate of 6.3 points. In general, the curves of growth for physical and mental traits are very similar."

Discussion¶

Related Claims¶

• Average-type children's percentage of final height attained by age 7 supports prediction of ultimate stature (70.3% for boys, 74.2% for girls) — related
• IQ is only approximately constant across successive examinations, with first-to-fifth IQ correlation of +0.82 and prediction error of 4 to 7 points — related
• Height at age 12 can be predicted from height at age 6 with a probable error of estimate of 2.98 cm for boys and 2.58 cm for girls — related
• Children maintain their relative height rank within a group from ages 4 to 18, with little crossing of growth curves — related
• Cross-sectional measurements of children of the same age may yield spurious growth facts because of great individual differences — related
• Coefficients of variability for physical traits tend to decrease from ages seven to seventeen and are generally higher in boys than in girls, per the review of Baldwin's growth study — related