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Sampling

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MMHassan Gani

Nutrition Analyst/FAO FSAU Somalia

Normal user

25 Feb 2009, 13:30

I would like to know the most appropriate and cost effective sampling system which is relevent to apply the pastoral communities like Somalia.

Mark Myatt

Consultant Epideomiologist

Frequent user

25 Feb 2009, 16:35

This is a big question. There is a workshop in Addis next week discussing this issue. ACF have a method in development that is a two-stage cluster-sampled method that uses a qualitative first phase to create a sampling frame, systematic sampling to select PSUs, posterior weighting (rather than PPS style prior weighting), a bootstrap estimator, census sampling of selected PSUs, and a MUAC case-definition. A field trial in Mali (last year) was very encouraging and ACF are looking to develop the method further. You should contact ACF at:

mnco@et.missions-acf.org

For details of the workshop. If you cannot come then I suggest that you contact me via ENN and we can discuss this in detail.

Marie McGrath

ENN

Forum moderator

25 Feb 2009, 16:47

Actually a field article based on the ACF work in Mali that Mark was involved with, will be included in Field Exchange 35 - this issue should be online by the end of the week. It describes a new method for assessing acute malnutrition in nomadic pastoralist populations.
I'll post a message once it's there.

Mark Myatt

Consultant Epideomiologist

Frequent user

25 Feb 2009, 16:58

Thanks. I was not sure when that article would come out That article should give you a pretty good idea of what the proposed method looks like. There is also a short article in FE issue 33 (http://www.ennonline.net/fex/33/fex33.pdf) which describes some earlier work by ACF in this area.

Mark Myatt

Consultant Epideomiologist

Frequent user

18 Mar 2009, 13:31

The article describing the Mali pilot is at http://www.ennonline.net/fex/35/fex35.pdf.


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