Stata 15 help for _svy_mkdeff

Title

[SVY] _svy_mkdeff -- Calculation of design effects for survey data analysis

Syntax

_svy_mkdeff

Description

_svy_mkdeff is a programming tool that computes design effects from e(V) and e(V_srs) (and e(V_srswr) if present) and places them in e(deff) and e(deft). Here e(V) is assumed to contain the design based (co)variance matrix from a model fit, e(V_srs) contains the estimate of the (co)variance matrix if the data were collected using a simple random sample without replacement, and e(V_srswr) contains the estimate of the (co)variance matrix if the data were collected using a simple random sample with replacement.

For examples, formulas, and a discussion of design effects, see [SVY] estat.


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