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From | Ole Dahl Rasmussen <odr@dca.dk> |
To | "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |
Subject | Re: st: Finite population correction with clustering of SE at a different level than the strata |
Date | Mon, 11 Jun 2012 09:30:36 +0000 |
Thanks for the answers and suggestions. Permutation seems very relevant. Let me provide a few more details, in particular on the issues raised by Stas Kolenikov. The population I want information on is the 7100 households living in the 46 villages. I do not want to generalized beyond this area. Using lists of the 7100 households, I've sampled 1775 households for interviews. Since 1775 is a reasonable share of 7100, I think I need to do FPC. The sample was done randomly within the 90 strataIDs. All Strata were included in the survey and thus all villages were included (whereas only half of the villages were included in the treatment). That's why I have no sampling units - I do not sample units, just households in strata. I do, however, use the sampling unit feature of svyset because I want Stata to cluster standard errors at the village level. You write that I should omit the -fpc()- in the first stage. How can I then cluster SEs at the village level? It seems that I should look other's work on the combination of randomized treatment and stratified random sampled surveying. Thanks again. Ole pweight: weights VCE: linearized Single unit: certainty Strata 1: <one> SU 1: vid FPC 1: one Strata 2: strataID SU 2: <observations> FPC 2: f Ole Dahl Rasmussen Rådgiver indenfor mikrofinans og evaluering. Ph.d.-studerende på Syddansk Universitet Adviser on Evaluation and Microfinance. PhD-student at University of Southern Denmark Nørregade 15 1165 København K / 1165 Copenhagen K www.noedhjaelp.dk / www.danchurchaid.org odr@dca.dk P +45 33152800 M +45 29699145 SKYPE odrdca VI TROR PÅ ET LIV FØR DØDEN * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/