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]

st: Bootstrapping question

From   "Ilian, Henry (ACS)" <>
To   "''" <>
Subject   st: Bootstrapping question
Date   Wed, 6 Feb 2013 11:28:53 -0500

I am working with samples that result in very large confidence intervals, and there is no way to get larger samples. Therefore bootstrapping is an appealing option. As I understand it, when you bootstrap a model, you compute the model with all of the bootstrapped samples and report the means and other statistics for each of the model coefficients. In my case, I'm not doing a model. All I need to do is report frequencies for ordinal data. There are 120 items on a case-reading instrument, and the items have between two and four answer choices. If I used bootstrapping, would I choose selected items to bootstrap and extrapolate the confidence intervals to other items with similar proportions in the original sample? Would I report the frequencies for each item from the original sample with the bootstrapped confidence intervals, or would I substitute mean frequencies from the bootstrapped samples for all of the items and report the bootstrapped confidence intervals for each item? !
 I've been doing a fair amount of reading, but I can't seem to find the answer to these questions.

Thanks for any help anyone can offer,

Henry Ilian

Confidentiality Notice: This e-mail communication, and any attachments, contains confidential and privileged information for the exclusive use of the recipient(s) named above. If you are not an intended recipient, or the employee or agent responsible to deliver it to an intended recipient, you are hereby notified that you have received this communication in error and that any review, disclosure, dissemination, distribution or copying of it or its contents is prohibited. If you have received this communication in error, please notify me immediately by replying to this message and delete this communication from your computer. Thank you.

*   For searches and help try:

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