tag:blogger.com,1999:blog-25541994.post7899670076482884119..comments2024-03-26T14:44:37.985-04:00Comments on D-Ed Reckoning: New Great Schools study doesn’t tell us anything we don’t already knowKDeRosahttp://www.blogger.com/profile/06853211164976890091noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-25541994.post-88087976448570077852011-05-31T16:11:39.577-04:002011-05-31T16:11:39.577-04:00The palisadesk comment, if factual, suggests the p...The palisadesk comment, if factual, suggests the possibility that making a choice (e.g. to emigrate from Africa or the Caribbean) to incur some short-term insecurity for a long-term gain is associated with high performance. Can someone afford to test this hypothesis by comparing kids not by race nor by parental achievement but by parental choice to immigrate, to live on loans to go to college, or to found a business?c-u-r-m-u-d-g-e-o-nhttps://www.blogger.com/profile/12635443970429779398noreply@blogger.comtag:blogger.com,1999:blog-25541994.post-89475561319647059312010-11-10T19:59:31.770-05:002010-11-10T19:59:31.770-05:00Engelmann followed up on the E-B kids as adults on...Engelmann followed up on the E-B kids as adults on several occasions. Most completed high school, college or post-secondary and had middle-class occupations or even professional careers. That could not have happened had they regressed to baseline IQs of 80-95.<br /><br />I don't have time to look up the UK data but perhaps one of your readers from across the pond will supply it.<br /><br /><i>It is highly unlikely that low SES whites outperform low SES Blacks.</i><br /><br /><b>?????????</b>palisadeskhttps://www.blogger.com/profile/13700503881038569921noreply@blogger.comtag:blogger.com,1999:blog-25541994.post-30111987472000416622010-11-10T13:44:27.731-05:002010-11-10T13:44:27.731-05:00the average IQ score at age seven for low-SES whit...<i>the average IQ score at age seven for low-SES white children adopted into high-SES white homes was 111.5</i><br /><br />And the Perry Preschool got IQs up to something like 120 as did the Bereiter-Engelmann preschool and other educational programs aimed at younger students.<br /><br />And then what invariably happens is that IQS regress back down to baseline when the kids hit adolescence.<br /><br />So environmental effects play a larger role at age 7 then they do at 13.<br /><br />That there is likely a genetic component to IQ does not mean that the environment plays no role ever. That's a strawman. The eswtimates are that the genetic component accounts for 0.4 - 0.7 of the variability.KDeRosahttps://www.blogger.com/profile/06853211164976890091noreply@blogger.comtag:blogger.com,1999:blog-25541994.post-52751218378360530862010-11-09T16:24:35.249-05:002010-11-09T16:24:35.249-05:00Mr. DeRosa,
Loehlin's recorrection for the MT...Mr. DeRosa,<br /><br />Loehlin's recorrection for the MTRS study in 2000 indicated that even assuming that the IQ tests were the same, the average IQ score at age seven for low-SES white children adopted into high-SES white homes was 111.5, which was a point higher than for the non adopted low SES white subjects.<br />Scarr et al's results from 1975 showed a five point spread between the two groups with the non adopted white children having a score of 117 and the adopted white children having a score of 112.<br /><br />In addition, the number of subjects in the study changed. First, it was 130 in 1975. Then, when the subjects were tested ten years later, it had increased to 265, out of which 69 subjects were excluded for reasons that Scarr et al. don't explain.<br /><br />Interestingly, of the IQ scores for the seventeen year old adopted interracial and black children, the vertical spread actually decreased by five tenths of a perentage point from 99 and 89 respectively in 1985 to 93.2 and 83.7 in Loehlin's reanaylsis.<br /><br />You've also mentioned the Minnesota Twin study to support a genetic hypothesis. What I didn't see mentioned was the fact that the average IQ score for the twins was eight points higher than the population in Minnesota and that they had been placed into a family rage only half of the size of the general population in Minnesota. The result was that more than three fourths of the twins scored higher than the average.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-25541994.post-54434473544311580022010-11-09T14:45:36.060-05:002010-11-09T14:45:36.060-05:00@a31b, subsequent analysis of the MTRS study corre...@a31b, subsequent analysis of the MTRS study corrected for the different IQ tests used. A sample size of 130 is sufficiently large to give statistically significant results and it is not the only study to find these results. We don't need a transracial study to see those effects -- black students from high SES black families perform below low SES white students as the CGCS study explains.KDeRosahttps://www.blogger.com/profile/06853211164976890091noreply@blogger.comtag:blogger.com,1999:blog-25541994.post-289304183571446392010-11-09T14:33:53.219-05:002010-11-09T14:33:53.219-05:00Mr. DeRosa,
You ignore the fact that the Minnesot...Mr. DeRosa,<br /><br />You ignore the fact that the Minnesota Transracial Study used different IQ tests for the seven and seventeen year old groups. The sample size was only 130. Also, no attempt was made to see the effects of children placed with high-SES adoptive parents of the same race.Anonymousnoreply@blogger.com