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[OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer

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Here's the newest version of the article. I revised some language and deleted the mention of the biasing influence of assortative mating in our new analysis. As MH noted, assortative mating does not appear to bias estimates in our sibling model. I also added a note on why the decision to estimate only ACE models in our CNLSY study was reasonable (for the age range investigated the three components are usually present).

(2014-Aug-22, 04:19:42)menghu1001 Wrote:
(2014-Aug-21, 23:45:22)Dalliard Wrote: Let's say rMZ is 0.8 and rDZ is 0.3 (and there is no AM). This could be because there's D variance and no C variance. But it could as well be that there's both D and C variance but more D. In the classic twin design, C and D are confounded; they cannot be simultaneously estimated because of underidentification. You need additional types of relatives to estimate both C and D.


I do not understand. What you seem to say is that we need twin + non twin data. But, in what is it a problem inherent to ADE model ?


Nothing wrong with the ADE model as such, but if you have only twin data and there is in fact both C and D variance, you cannot estimate both and your results will be off.

Quote:I have attempted to replicate your results. I failed, and I will probably give up. NlsyLinks must hate me. You may want to look at your syntax again.

The syntax should be ok. What's the specific problem you're having?

Quote:Besides, if you want confidence intervals, given that your syntax ended up like this :

ace <-AceLavaanGroup(dsClean)
ace

In general, the thing to do is :

confint(ace, level=0.95)

That should do the trick.

I rather doubt that the CIs would be correct because NlsyLinks ignores non-independence across pairs.


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Messages In This Thread
[OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Chuck - 2014-Jul-14, 06:25:48
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Emil - 2014-Jul-14, 10:45:09
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Meng Hu - 2014-Jul-14, 19:57:08
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Chuck - 2014-Jul-19, 22:37:13
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Chuck - 2014-Aug-05, 22:39:40
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Emil - 2014-Aug-07, 19:25:59
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Chuck - 2014-Aug-07, 22:27:33
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Chuck - 2014-Aug-08, 00:32:10
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Chuck - 2014-Aug-19, 03:11:37
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Emil - 2014-Aug-08, 00:29:43
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Emil - 2014-Aug-19, 09:36:33
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Chuck - 2014-Aug-19, 19:22:42
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Duxide - 2014-Aug-19, 19:33:48
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Chuck - 2014-Aug-19, 20:27:44
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Duxide - 2014-Aug-19, 20:56:25
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Emil - 2014-Aug-19, 21:23:08
RE: Genetic and Environmental Determinants of IQ - by Meng Hu - 2014-Aug-21, 01:11:58
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Chuck - 2014-Aug-21, 01:25:25
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Meng Hu - 2014-Aug-21, 02:29:13
RE: Genetic and Environmental Determinants of IQ - by Dalliard - 2014-Aug-21, 19:58:04
RE: Genetic and Environmental Determinants of IQ - by Meng Hu - 2014-Aug-21, 21:11:34
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Chuck - 2014-Aug-21, 23:43:11
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Duxide - 2014-Aug-21, 22:57:35
RE: Genetic and Environmental Determinants of IQ - by Dalliard - 2014-Aug-21, 23:45:22
RE: Genetic and Environmental Determinants of IQ - by Meng Hu - 2014-Aug-22, 04:19:42
RE: Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Americans - by Chuck - 2014-Aug-22, 04:25:14
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Meng Hu - 2014-Sep-02, 23:40:26
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Chuck - 2014-Sep-03, 02:48:14
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Meng Hu - 2014-Sep-07, 01:49:42
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Chuck - 2014-Sep-07, 19:35:52
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Duxide - 2014-Sep-08, 13:02:31
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Chuck - 2014-Sep-08, 15:16:27
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Emil - 2014-Sep-07, 21:44:22
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Chuck - 2014-Sep-07, 23:34:54
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Emil - 2014-Sep-07, 23:51:24
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Meng Hu - 2014-Sep-08, 00:21:20
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Emil - 2014-Sep-08, 00:36:38
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Emil - 2014-Sep-08, 15:04:06
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Duxide - 2014-Sep-08, 17:48:27
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Duxide - 2014-Sep-08, 18:01:30
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Chuck - 2014-Sep-08, 19:44:52
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Duxide - 2014-Sep-08, 19:48:12
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Chuck - 2014-Sep-11, 23:19:01
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Duxide - 2014-Sep-12, 10:53:22
RE: [OBG] Genetic and Environmental Determinants of IQ - by Dalliard - 2014-Sep-09, 21:25:33
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Meng Hu - 2014-Sep-10, 01:12:35
RE: [OBG] Genetic and Environmental Determinants of IQ - by Dalliard - 2014-Sep-11, 18:27:00
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Emil - 2014-Sep-11, 23:29:03
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Chuck - 2014-Sep-11, 23:35:43
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Emil - 2014-Sep-11, 23:44:40
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Meng Hu - 2014-Sep-12, 01:30:14
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Emil - 2014-Sep-12, 02:26:19
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Duxide - 2014-Sep-12, 22:59:24
RE: [OBG] Genetic and Environmental Determinants of IQ in Black, White, and Hispanic Amer - by Chuck - 2014-Sep-14, 21:11:40
 
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