center nested within country

Dutch translation: Centrum (genest binnen Land)

15:22 Jan 27, 2012
English to Dutch translations [PRO]
Medical - Mathematics & Statistics
English term or phrase: center nested within country
The primary variable will be analyzed for each dose independently using a mixed model for the FAS. The model will contain treatment and sex as fixed effects with the baseline FEV1 measurement and age as covariates. To reflect the randomization scheme the model will also include country/region as fixed effects with center nested within country as a random effect.

What center is meant here? And what does nested mean in this context? Anybody who is familiar with these terms?
Henny hassebroek
Local time: 01:18
Dutch translation:Centrum (genest binnen Land)
Explanation:
my interpretation is this:

"Country/Region" is included as a fixed effect.

nested within this effect (shorthand name = "Country") a random effect is included, namely "Center". this perhaps refers to research/medical centers within a country or region?

don't know the verb 'nesting' in this context, but I would be surprised if the Dutch translation would be anything other than 'genest' :)
Selected response from:

Ron Willems
Netherlands
Grading comment
Dankjewel Ron, voor het snelle antwoord!

Henny
4 KudoZ points were awarded for this answer



Summary of answers provided
2 +2Centrum (genest binnen Land)
Ron Willems
Summary of reference entries provided
A genest binnen B
Lianne van de Ven

Discussion entries: 1





  

Answers


14 mins   confidence: Answerer confidence 2/5Answerer confidence 2/5 peer agreement (net): +2
Centrum (genest binnen Land)


Explanation:
my interpretation is this:

"Country/Region" is included as a fixed effect.

nested within this effect (shorthand name = "Country") a random effect is included, namely "Center". this perhaps refers to research/medical centers within a country or region?

don't know the verb 'nesting' in this context, but I would be surprised if the Dutch translation would be anything other than 'genest' :)


Ron Willems
Netherlands
Works in field
Native speaker of: Native in DutchDutch
PRO pts in category: 16
Grading comment
Dankjewel Ron, voor het snelle antwoord!

Henny

Peer comments on this answer (and responses from the answerer)
agree  Lianne van de Ven: zonder haakjes, het gaat om centrum genest binnen land/streek (waar centrum dan ook naar moge verwijzen)
44 mins

agree  Frank van Thienen (X): Normale biometrics lingo: dus met Lianne, zonder haakjes, gewoon letterlijk, woord voor woord vertalen.
1 hr
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Reference comments


56 mins
Reference: A genest binnen B

Reference information:
beperkte randomisatie/sequentiele toewijzing
http://en.wikipedia.org/wiki/Restricted_randomization
http://www.minerva-ebm.be/articles/nl/woordenlijst/sequentie...

We nesten dan BEMESTING binnen VELD om het effect op de groei ... Beter dan pure randomisatie en uiteraard beter dan ze in stroken te ... Type I SS: goed voor gebalanceerde geneste designs, effecten worden sequentieel ...
http://is.gd/Tqg9Aq (PPT presentatie)

Of zoek: randomisatie sequentieel nesten (nederlandstalige zoekresultaten)


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Note added at 1 hr (2012-01-27 16:23:29 GMT)
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Geneste populaties
In sociaal wetenschappelijk onderzoek worden vaak experimenten uitgevoerd in geneste populaties. Een geneste populatie betekent dat personen binnen groepen genest zijn. Ook kan het betekenen dat binnen personen herhaalde metingen worden gedaan. Het voorbeeld, een interventie om ongezond gedrag bij jongeren te voorkomen, of terug te dringen, wordt vaak uitgevoerd op scholen. Hier is dan sprake van geneste data structuur; de leerlingen zijn genest binnen scholen. De uitkomsten bij geneste data zijn afhankelijk van de interactie tussen personen binnen dezelfde groep. In het voorbeeld zijn de uitkomsten, zoals rook- en drinkgedrag van leerlingen in dezelfde school afhankelijk van onderlinge beïnvloeding en communicatie, de schoolregels en het gedrag van docenten.
http://www.nwo.nl/nwohome.nsf/pages/NWOA_7EVDMX

Lianne van de Ven
United States
Native speaker of: Native in DutchDutch
Note to reference poster
Asker: Bedankt voor het antwoord en de links, Lianne. Henny

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