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Ethnic Differences in the UK

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(2014-Oct-05, 12:12:11)Gnomon Wrote: The figures mark the end of a long period during which black pupils have languished at the bottom of the league table detailing the performance record of different ethnic groups in exams. In both English and maths, black pupils outscore the rest of the country at secondary school in terms of the progress made – with 76.2 per cent and 74.2 per cent of pupils making the expected level of progress or better – compared with 70.4 per cent and 70.7 per cent for all pupils.


It's hard for me to say since I don't have a good grasp of the psychometric characteristics of the exams. The IQ test data itself is not unequivocal. The large CAT normative study which the folks at GL assessment confirmed for me showed an average ability difference of about 0.5 SD. The composite difference would have been a little higher at e.g ~ 0.55 SD. That was for age 11/12 in year 2009-2010. The total Black sample size was about 4500 or about 10x the size of the MCS one. I was informed that it was a representative sample. So, where one to do a meta-analysis using just these two points one would get an age 11-12 year 2009 to 2012 B/W difference of 0.5 SD. Generally, the CAT sample should be taken as a better index since it involved 9 subtests, not just one.

Quote:My first thought was that this must be a function of the "London effect" as over 60% of black pupils live in the capital. [b]But actually black improvement has been faster in other regions.

According to Steven Strand, U.K. Black kids are concentrated in a few dozen schools. This would allow schools to focus resources to boost scores. I suspect that a large percent of the variance in the GCSE exams is non-g related; I can't be sure though.

Quote:My next thought was that it might be a result of immigration. Unfortunately we don't know how many recent immigrants are included in the figures but we can look at differences between black Caribbean and black African as a proxy, as the latter are more likely to be recent immigrants.

What you would want to do is determine with a high degree of accuracy what the ~ age 12 second+ generation West Indian B/U.k. W gap was from the 1970s to 1990s. Lynn's estimates can't be taken at face value. I have most of the studies if you want to give it a try. Anyways, this would give you a baseline. I looked through the data and I would tentatively put it at 0.8 SD, but it really should be thoroughly reviewed.

Quote:I don't think grade inflation explains it - white boys should benefit from this as much as any other group.

It would depend on the amount of inflation. So, here's an example. d is the standardized difference, G1 and G2 are equivalent percentiles. Percentile difference is the percentile difference. As grades inflate, the percentile differences become smaller; when they are smaller they are over sensitive to other influences in the sense that you don't have to shift the percentile distributions as much to "close gaps".

SD G1 G2 Percentile Difference
0.50 0.50 0.31 0.19
0.50 0.75 0.57 0.18
0.48 0.85 0.71 0.14
0.51 0.90 0.78 0.12
0.52 0.95 0.87 0.08
0.51 0.99 0.97 0.03

Because of this, GCSE 5 A-G pass rate differences, with the 95% White pass rates, strike me as being pretty unreliable as indexes of mean differences. But the 5 A-C ones should have discriminatory power. So one would need another explanation.

I don't think -- and I haven't argued here -- that the UK educational establishment closed the UK B/W IQ gap. It does seem that it has been substantially narrowed, though, such to allow non-g factors to make up for cognitive differences when it comes to achievement tests.
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Messages In This Thread
Ethnic Differences in the UK - by Chuck - 2014-Aug-25, 19:50:53
RE: Ethnic Differences in the UK - by Emil - 2014-Aug-25, 21:19:36
RE: Ethnic Differences in the UK - by Chuck - 2014-Aug-26, 00:29:43
RE: Ethnic Differences in the UK - by Emil - 2014-Aug-26, 00:55:47
RE: Ethnic Differences in the UK - by Chuck - 2014-Aug-26, 01:43:32
Broader scope - by Emil - 2014-Aug-26, 02:46:33
RE: Ethnic Differences in the UK - by Meng Hu - 2014-Aug-26, 03:45:56
RE: Ethnic Differences in the UK - by Chuck - 2014-Aug-26, 05:44:33
RE: Ethnic Differences in the UK - by Emil - 2014-Aug-26, 06:24:51
RE: Ethnic Differences in the UK - by Duxide - 2014-Aug-26, 09:46:42
RE: Ethnic Differences in the UK - by Emil - 2014-Aug-27, 01:09:10
RE: Ethnic Differences in the UK - by Duxide - 2014-Aug-27, 10:32:59
RE: Ethnic Differences in the UK - by Gilfoyle - 2014-Aug-26, 13:58:43
RE: Ethnic Differences in the UK - by Duxide - 2014-Aug-26, 14:15:28
RE: Ethnic Differences in the UK - by Chuck - 2014-Aug-26, 18:11:06
RE: Ethnic Differences in the UK - by Meng Hu - 2014-Aug-26, 23:06:08
RE: Ethnic Differences in the UK - by Chuck - 2014-Aug-27, 00:00:09
RE: Ethnic Differences in the UK - by Meng Hu - 2014-Aug-27, 01:53:01
RE: Ethnic Differences in the UK - by Emil - 2014-Sep-28, 07:39:21
RE: Ethnic Differences in the UK - by Chuck - 2014-Sep-28, 18:23:21
RE: Ethnic Differences in the UK - by Gnomon - 2014-Oct-05, 12:12:11
RE: Ethnic Differences in the UK - by Chuck - 2014-Oct-05, 14:56:13
RE: Ethnic Differences in the UK - by Gnomon - 2014-Oct-06, 03:16:49
RE: Ethnic Differences in the UK - by Chuck - 2014-Oct-06, 04:34:50
RE: Ethnic Differences in the UK - by Chuck - 2014-Oct-05, 15:18:40
RE: Ethnic Differences in the UK - by Chuck - 2014-Oct-05, 15:26:15
RE: Ethnic Differences in the UK - by Peter Frost - 2014-Sep-29, 04:09:03
Somalis - by Emil - 2014-Sep-29, 07:50:17
RE: Ethnic Differences in the UK - by Peter Frost - 2014-Oct-05, 18:38:40
RE: Ethnic Differences in the UK - by Chuck - 2014-Oct-05, 19:06:25
RE: Ethnic Differences in the UK - by Emil - 2014-Oct-05, 18:47:23
RE: Ethnic Differences in the UK - by Emil - 2014-Oct-06, 06:52:12
RE: Ethnic Differences in the UK - by Peter Frost - 2014-Oct-07, 04:36:56
RE: Ethnic Differences in the UK - by Emil - 2014-Oct-07, 07:38:36
RE: Ethnic Differences in the UK - by Chuck - 2014-Oct-10, 00:22:22
RE: Ethnic Differences in the UK - by Jm8 - 2014-Oct-08, 04:55:23
RE: Ethnic Differences in the UK - by Peter Frost - 2014-Oct-08, 18:23:51
RE: Ethnic Differences in the UK - by Chuck - 2014-Oct-08, 18:51:48
RE: Ethnic Differences in the UK - by Emil - 2014-Oct-08, 20:17:28
RE: Ethnic Differences in the UK - by Peter Frost - 2014-Oct-08, 22:42:06
RE: Ethnic Differences in the UK - by Emil - 2014-Oct-08, 23:25:15
RE: Ethnic Differences in the UK - by Emil - 2014-Oct-10, 01:34:33
RE: Ethnic Differences in the UK - by Peter Frost - 2014-Oct-10, 05:51:45
RE: Ethnic Differences in the UK - by Emil - 2014-Oct-10, 06:00:26
RE: Ethnic Differences in the UK - by Zoidberg - 2014-Nov-25, 12:05:16
RE: Ethnic Differences in the UK - by Chuck - 2014-Nov-29, 01:44:59
RE: Ethnic Differences in the UK - by Chuck - 2014-Nov-30, 05:44:19
RE: Ethnic Differences in the UK - by Chuck - 2014-Nov-30, 06:45:07
RE: Ethnic Differences in the UK - by Zoidberg - 2014-Nov-30, 07:45:09
RE: Ethnic Differences in the UK - by Ahnenerbe - 2014-Nov-30, 07:38:08
RE: Ethnic Differences in the UK - by Zoidberg - 2014-Nov-30, 09:23:23
RE: Ethnic Differences in the UK - by Emil - 2014-Nov-30, 09:30:47
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-03, 21:50:18
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-03, 23:16:49
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-03, 23:23:02
RE: Ethnic Differences in the UK - by Meng Hu - 2015-Jan-05, 19:48:29
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-05, 20:34:22
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-06, 21:32:33
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-06, 23:42:10
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-07, 15:24:49
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-07, 21:45:20
RE: Ethnic Differences in the UK - by Meng Hu - 2015-Jan-09, 01:57:20
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-09, 03:52:52
RE: Ethnic Differences in the UK - by Duxide - 2015-Jan-11, 17:12:35
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-12, 17:34:05
RE: Ethnic Differences in the UK - by Duxide - 2015-Jan-12, 17:41:43
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-12, 17:54:09
RE: Ethnic Differences in the UK - by Duxide - 2015-Jan-12, 18:13:21
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-07, 22:03:36
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-07, 22:29:24
RE: Ethnic Differences in the UK - by Meng Hu - 2015-Jan-09, 02:13:17
RE: Ethnic Differences in the UK - by Jm8 - 2015-Jan-06, 20:10:28
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-06, 22:08:28
RE: Ethnic Differences in the UK - by Emil - 2015-Jan-09, 10:44:30
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-09, 16:24:13
RE: Ethnic Differences in the UK - by Emil - 2015-Jan-11, 01:49:51
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-11, 06:16:13
RE: Ethnic Differences in the UK - by Jm8 - 2015-Jan-11, 19:38:30
RE: Ethnic Differences in the UK - by Jm8 - 2015-Jan-11, 21:41:47
RE: Ethnic Differences in the UK - by Duxide - 2015-Jan-11, 22:10:20
RE: Ethnic Differences in the UK - by Jm8 - 2015-Jan-11, 22:12:54
RE: Ethnic Differences in the UK - by Duxide - 2015-Jan-11, 22:21:13
RE: Ethnic Differences in the UK - by Duxide - 2015-Jan-18, 15:25:05
RE: Ethnic Differences in the UK - by Emil - 2015-Jan-12, 05:25:46
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-12, 17:58:32
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-12, 19:01:02
RE: Ethnic Differences in the UK - by Duxide - 2015-Jan-12, 19:25:16
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-12, 20:42:51
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-12, 22:23:15
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-12, 22:55:59
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-13, 01:39:38
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-19, 04:08:12
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-31, 09:47:26
RE: Ethnic Differences in the UK - by Chuck - 2015-Jan-31, 17:34:06
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-31, 17:48:17
RE: Ethnic Differences in the UK - by Emil - 2015-Jan-31, 14:27:32
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Jan-31, 16:47:01
RE: Ethnic Differences in the UK - by Jm8 - 2015-Nov-17, 19:21:59
RE: Ethnic Differences in the UK - by Chuck - 2015-Nov-20, 17:37:40
RE: Ethnic Differences in the UK - by Jm8 - 2015-Nov-21, 21:12:31
RE: Ethnic Differences in the UK - by Jm8 - 2015-Nov-21, 22:40:34
RE: Ethnic Differences in the UK - by Emil - 2015-Nov-21, 23:28:51
RE: Ethnic Differences in the UK - by Jm8 - 2015-Nov-21, 23:38:50
RE: Ethnic Differences in the UK - by Duxide - 2015-Nov-23, 20:54:17
RE: Ethnic Differences in the UK - by Emil - 2015-Nov-24, 15:46:20
RE: Ethnic Differences in the UK - by Duxide - 2015-Nov-24, 19:12:03
RE: Ethnic Differences in the UK - by Emil - 2015-Nov-24, 20:35:10
RE: Ethnic Differences in the UK - by Duxide - 2015-Nov-24, 20:40:14
RE: Ethnic Differences in the UK - by Emil - 2015-Nov-25, 01:49:05
RE: Ethnic Differences in the UK - by Duxide - 2015-Nov-25, 10:32:46
RE: Ethnic Differences in the UK - by Chuck - 2015-Nov-25, 23:45:00
RE: Ethnic Differences in the UK - by Emil - 2015-Nov-26, 02:41:50
RE: Ethnic Differences in the UK - by Emil - 2015-Nov-21, 23:38:34
RE: Ethnic Differences in the UK - by Zoidberg - 2015-Nov-18, 03:20:27
RE: Ethnic Differences in the UK - by Chuck - 2015-Nov-20, 18:04:02
RE: Ethnic Differences in the UK - by Emil - 2015-Nov-21, 23:35:56
RE: Ethnic Differences in the UK - by Duxide - 2015-Nov-23, 20:50:51
RE: Ethnic Differences in the UK - by Emil - 2015-Nov-24, 15:42:41
RE: Ethnic Differences in the UK - by Jm8 - 2016-Jan-22, 03:13:13
RE: Ethnic Differences in the UK - by Duxide - 2016-Jan-23, 11:03:02
RE: Ethnic Differences in the UK - by Zoidberg - 2016-Jan-28, 14:27:15
RE: Ethnic Differences in the UK - by Chuck - 2016-Jan-28, 17:41:35
RE: Ethnic Differences in the UK - by Zoidberg - 2016-Jan-28, 19:17:28
RE: Ethnic Differences in the UK - by Chuck - 2016-Jan-28, 22:04:58
 
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