Teacher Effects on Student Achievement and Height: A Cautionary Tale

Re:Teacher Effects on Student Achievement and Height: A Caut... by xyzzyz on Wednesday November 27, 2019 @05:54PM (#21652979)

No, this is also found in children. See e.g. this[1] study, which also by design (it's a twin study) rules out the hypothesis that the effect is mostly environmental.

[1] - https://www.ncbi.nlm.nih.gov/pubmed/17081263

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Re:Teacher Effects on Student Achievement and Height: A Caut... by iguy on Wednesday November 27, 2019 @05:59PM (#21653025)

Thanks. That there is signal in which twin is taller at precisely age 12 is interesting, and seems like the same phenomenon as the adult effects.

But I'm saying something much simpler. In a school class, there's another effect, that the oldest may be a year or more older than the youngest. The mix of ages in a classroom will produce a correlation all by itself. It seems to me this would be a much bigger effect: 7th-graders are quite a bit taller, and better on tests, than 6th-graders.

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Re:Teacher Effects on Student Achievement and Height: A Caut... by xyzzyz on Wednesday November 27, 2019 @06:12PM (#21653114)

Ah, that's a good point. It would probably require looking deeper into the studies to see how it is controlled for, if at all.

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