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Re: st: ci's while adjusting for response rate
From
Austin Nichols <[email protected]>
To
[email protected]
Subject
Re: st: ci's while adjusting for response rate
Date
Fri, 21 Jan 2011 12:03:10 -0500
Rich <[email protected]>:
I think you are referring to pp.361-363 in Sampling Techniques which
address no responses within a stratum. If it is really a simple
random sample, no adjustments are needed when one is (perhaps
foolishly) using a normal approx CI and assuming responders and
nonresponders are essentially identical. A slightly more conservative
approach in the spirit of Cochran's discussion (or Manski's work)
would be to compute upper and lower bounds assuming the true
proportion among nonresponders is 1 and 0, respectively.
On Fri, Jan 21, 2011 at 10:19 AM, <[email protected]> wrote:
> Hi,
>
> I am away from my office and have no access to texts so am asking for help here
>
> A client has some survey results based on simple random sampling; unfortunately, the response rate was not as good as hoped for; at any rate, they are requesting CI's for some proportions; I recall that Cochran's book (Cochran, WG (1977?), _Sampling Techniques, 3rd edition_, Wiley) discusses an adjustment to CI for non-response rate; if anyone could supply this, and/or thoughts on the use of this adjustment, I would greatly appreciate it
>
> Rich
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