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Old 02-04-2013, 05:43 PM   #87
Join Date: Feb 2011
Posts: 450

Originally Posted by NoCalParent View Post
Coming from a state with a late kindergarten eligibility date (12/2), I found this study done at the University of Illinois interesting. "Kindergarten Entrance Age and Children’s Achievement: Impacts of State Policies, Family, Background, and Peers" provides summary findings from two longitudinal studies over 15 years. It says,

"First, our baseline models indicate that being a year older at the beginning of kindergarten leads to a 0.53 standard deviation increase in reading test scores and a 0.83 standard deviation increase in math scores during the fall of kindergarten, a point in time so early in the academic year that very little learning has taken place in school. The entrance age effects tend to diminish as children progress through school but are sizable even in eighth grade. Second, we present compelling evidence that entrance age effects are larger among children from high socioeconomic status families than among poorer children. This pattern is consistent with a relatively high rate of accumulation of
human capital among high-income children in the years prior to kindergarten, and suggests that policies intended to raise average entrance ages will exacerbate socioeconomic differences in achievement in early grades. "
The abstract of the article you cited is interesting. The results of the tests at the kindergarten level favors the older kids. It is different than my experience and observation at the medical school, residency and post doc fellowship levels. There have been a lot of younger, very bright, better test taker people I encountered along the way.
I think "the older age has better test result" holds true for average general population but might not apply to smart subgroup of kids.
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