Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, is already up and running.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: Survey question

From   Steve Samuels <>
Subject   Re: st: Survey question
Date   Tue, 4 May 2010 13:49:41 -0400

-svy- commands?

Yes: if

• You have differential non-response in identifiable subgroups, and
want to compensate for that.
• You want to adjust for known differences between known
characteristics of the  population and the sample.  In that case you
will want to re-weight the initially equal weights with
post-stratification, or raked, weights.
• You want to separate statistics for subgroups. In this case, you
will not get correct standard errors without the survey commands.

Otherwise, no.


On Tue, May 4, 2010 at 1:37 PM, Michael Norman Mitchell
<> wrote:
> Greetings
>  I am embarrassed to ask this question, but I just want to be extra sure
> that I am on the right track.
>  We have a sampling frame of people (a list of say 7000 people) and we are
> going to sample of say 300 of them. All people in the sampling frame will
> have an equal probability of being selected.
>  Assume that we do not want to compute "totals" (i.e, counts, frequencies)
> in the population, and just focus on things like percentages, means, and
> estimation commands (like regress). In such a case, is there any need or
> benefit to calculate -pweights- and use the -svy- commands?
> Many thanks,
> --
> Michael N. Mitchell
> See the Stata tidbit of the week at...
> *
> *   For searches and help try:
> *
> *
> *

Steven Samuels
18 Cantine's Island
Saugerties NY 12477
Voice: 845-246-0774
Fax:    206-202-4783

*   For searches and help try:

© Copyright 1996–2016 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index