[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

From |
Richard Williams <Richard.A.Williams.5@ND.edu> |

To |
statalist@hsphsun2.harvard.edu, statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Calculation of likelihood ratio when using svy |

Date |
Wed, 20 Feb 2008 09:30:49 -0500 |

At 08:44 AM 2/20/2008, Rodriguez, Liliana F wrote:

Hello list,LR tests are not appropriate with survey data because the ML assumption that observations are independent is violated. Instead use Wald tests. For the case of one variable, you can just look at the t value. For more complicated tests, use the -test- command.

I'm building a logistic regression model with data from a survey. Therefore, I'm using the survey function of STATA. When trying to run the Likelihood Ratio to compare the model with and without a Variable (potentially poor predictor), I get a message stating that "lrtest is not appropriate with survey estimation results." What is my alternative command to run the LR test and decide if I should keep or discard this variable?

Thank you,

Liliana R.

For more info, see

http://www.stata.com/support/faqs/stat/lrtest.html

http://www.stata.com/support/faqs/stat/svyml.html

-------------------------------------------

Richard Williams, Notre Dame Dept of Sociology

OFFICE: (574)631-6668, (574)631-6463

HOME: (574)289-5227

EMAIL: Richard.A.Williams.5@ND.Edu

WWW: http://www.nd.edu/~rwilliam

*

* For searches and help try:

* http://www.stata.com/support/faqs/res/findit.html

* http://www.stata.com/support/statalist/faq

* http://www.ats.ucla.edu/stat/stata/

**References**:**st: Calculation of likelihood ratio when using svy***From:*"Rodriguez, Liliana F" <Liliana.F.Rodriguez@uth.tmc.edu>

- Prev by Date:
**Re: st: How can I obtain the name of a variable's value label programatically?** - Next by Date:
**Re: st: How can I obtain the name of a variable's value label programatically?** - Previous by thread:
**st: Calculation of likelihood ratio when using svy** - Next by thread:
**st: Calculation of likelihood ratio when using svy** - Index(es):

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