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From |
Suryadipta Roy <sroy2138@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Interpretation of interaction term in nonlinear models |

Date |
Thu, 30 May 2013 07:53:01 -0400 |

Maarten, This is very helpful, thank you very much! For some reason, I thought that the z_phd variable in your example is a categorical variable as well when I had previously read the thread. I guess that I would need to standardize my continuous variable for a similar interpretation. Sincerely, Suryadipta. On Thu, May 30, 2013 at 7:19 AM, Suryadipta Roy <sroy2138@gmail.com> wrote: > Dear Statalisters, > > I am studying the effect of an interaction between a categorical > variable (0/1) and a continuous variable (0-6) on the dependent > variable in a nonlinear model (using -xtpoisson-). The value of the > coefficient using the -irr- option is 0.90, while the size of the > interaction term in the probability metric form is, of course, -0.11 > (exp(-0.11) = 0.90). My basic question is, if it might be possible to > have a one-sentence interpretation of the value of the coefficient in > the multiplicative form (0.90), e.g. something in the lines of "the > effect of the categorical variable increases by a factor of 0.9 (i.e. > a 10% reduction of the dependent variable) due to an 1% increase in > the continuous variable"? Any suggestion in this regard will be highly > appreciated. > > Sincerely, > Suryadipta Roy. > * > * 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/

**Follow-Ups**:**Re: st: Interpretation of interaction term in nonlinear models***From:*Suryadipta Roy <sroy2138@gmail.com>

**References**:**st: Interpretation of interaction term in nonlinear models***From:*Suryadipta Roy <sroy2138@gmail.com>

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