X hits on this document

108 views

0 shares

0 downloads

0 comments

14 / 30

Stratification & Sample Allocation

Stratification is the process of regrouping similar PSUs into sub-groups (strata).

Effects: better precision, flexible design, small sub-population coverage (or over sampling).

How to do stratification? (region) X (residence type)

Sample allocation: proportional, power allocation, equal size allocation (if budget is too tight).

Implicit stratification: sort the sampling frame according to certain characters such as regions, urban-rural residence, sub-regions, districts, etc.., then select a  pps sample.

There is no unique rule for stratification, it depends on country situation  

Document info
Document views108
Page views108
Page last viewedWed Jan 18 23:12:46 UTC 2017
Pages30
Paragraphs435
Words2145

Comments