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 at the end of May, and its replacement, statalist.org is already up and running.


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

Re: st: Interpretation of Two-sample t test with equal variances?


From   Gwinyai Masukume <parturitions@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Interpretation of Two-sample t test with equal variances?
Date   Thu, 21 Mar 2013 15:31:57 +0200

Merci beaucoup - thank you.

On 3/21/13, Carlo Lazzaro <carlo.lazzaro@tiscalinet.it> wrote:
> Dear Gwinyai,
> the complexity of your seemingly simple model rests on the fact that one
> predictor is not enough to explain differences in delivery mode.
> I can bet that no researcher of no reserch field hopes to be successful in
> publishing a one-predictor logistic regression model.
> In case  you did not perform it yet, I would suggest to take a look (via
> PubMed or Medline) at what others have published on this topic in the past
> and the methods they follow.
> For instance, the following key-word: determinants AND caesarean AND
> delivery in PubMed give me back 90 results (and part of them can be
> downloaded in extenso free of charge from journals website): some articles
> can be of interest for your research purposes.
> Best regards,
> Carlo
> -----Messaggio originale-----
> Da: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] Per conto di Gwinyai Masukume
> Inviato: giovedì 21 marzo 2013 12:18
> A: statalist@hsphsun2.harvard.edu
> Oggetto: Re: st: Interpretation of Two-sample t test with equal variances?
>
> Carlo. Thanks once again. Well, an apparently simple mode of delivery which
> has 2 possible outcomes is turning out to be far more complex than I
> anticipated.
> With gratitude,
> Gwinyai
>
> On 3/21/13, Carlo Lazzaro <carlo.lazzaro@tiscalinet.it> wrote:
>> Dear Gwinyai,
>> if you prefer to avoid a discussion about the indications for
>> C/section, you can consider some hospital features as predictors
>> instead (e.g.: public or private; teaching hospital or else; number of
>> beds of the obstetrics unit grouped in different categories (0-10;
>> .....); number of births per year grouped in different categories;
>> ...).
>> Kind regards,
>> Carlo
>> -----Messaggio originale-----
>> Da: owner-statalist@hsphsun2.harvard.edu
>> [mailto:owner-statalist@hsphsun2.harvard.edu] Per conto di Gwinyai
>> Masukume
>> Inviato: mercoledě 20 marzo 2013 22:07
>> A: statalist@hsphsun2.harvard.edu
>> Oggetto: Re: st: Interpretation of Two-sample t test with equal
>> variances?
>>
>> Carlo - thanks, i was skeptical about going into a discussion about
>> the indications for C/section which can be relative or absolute;
>> maternal, fetal or materno-fetal.
>>
>> Austin - thanks for the link and pointing out that a pseudo R2 should
>> not be a worry. by increasing the sample size a thousand fold i guess
>> what that which is being detected is so small that in the end it's not
>> worth it (detecting something so small)?
>>
>> Thanks all round. Appreciated.
>>
>> G
>> *
>> *   For searches and help try:
>> *   http://www.stata.com/help.cgi?search
>> *   http://www.stata.com/support/faqs/resources/statalist-faq/
>> *   http://www.ats.ucla.edu/stat/stata/
>>
>>
>> *
>> *   For searches and help try:
>> *   http://www.stata.com/help.cgi?search
>> *   http://www.stata.com/support/faqs/resources/statalist-faq/
>> *   http://www.ats.ucla.edu/stat/stata/
>>
>
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/faqs/resources/statalist-faq/
> *   http://www.ats.ucla.edu/stat/stata/
>
>
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/faqs/resources/statalist-faq/
> *   http://www.ats.ucla.edu/stat/stata/
>

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index