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From |
John Antonakis <John.Antonakis@unil.ch> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Analyzing multiple mediators |

Date |
Thu, 22 Nov 2012 21:08:31 +0100 |

Hi Isok:

See also:

Best, J. __________________________________________ Prof. John Antonakis Faculty of Business and Economics Department of Organizational Behavior University of Lausanne Internef #618 CH-1015 Lausanne-Dorigny Switzerland Tel ++41 (0)21 692-3438 Fax ++41 (0)21 692-3305 http://www.hec.unil.ch/people/jantonakis Associate Editor The Leadership Quarterly __________________________________________ > Hi, >

> stata FAQ site (http://www.ats.ucla.edu/stat/stata/faq/mulmediation.htm). > The analyses are based on Preacher & Hayes (2008) method and uses > combination of -sureg- and -nlcom- commands to get the coefficients and > indirect effects coefficients, respectively. Then to get the standard > errors, it demonstrates use of ado-program called 'bootmm' and subsequent > bootstrap post-estimation command. > > Where I'm having trouble with this combination of analyses is at the last > stage with bootstrap command. The error msg reads, "insufficient

> r(2000). >

> appreciated! > > Thanks, > isok >

> */ > /* H2a: Mediation Test IVs(PRD) MV(GC3E GC3D RC3E RC3D) DV(CESD) > CV(controls)*/ > /* surge (mv1 iv cv)(mv2 iv2 cv)(dv mv1 mv2 iv cv) > */ > /* nlcom [mv1]_b[iv]*[dv]_b[mv1] > */

> -*/ > > /*-sureg-&-nlcom- methods*/ > > sureg (GC3E PRD i.SEX AGE EDU i.UNEMP i.MARSTS i.NATIVITY) /// > (GC3D PRD i.SEX AGE EDU i.UNEMP i.MARSTS i.NATIVITY) /// > (RC3E PRD i.SEX AGE EDU i.UNEMP i.MARSTS i.NATIVITY) /// > (RC3D PRD i.SEX AGE EDU i.UNEMP i.MARSTS i.NATIVITY) /// > (CESD GC3E GC3D RC3E RC3D PRD i.SEX AGE EDU i.UNEMP i.MARSTS > i.NATIVITY) if NMV==1 > > //Indirect via GC3E > nlcom [GC3E]_b[PRD]*[CESD]_b[GC3E] > //Indirect via GC3D > nlcom [GC3D]_b[PRD]*[CESD]_b[GC3D] > //Indirect via GC3E > nlcom [RC3E]_b[PRD]*[CESD]_b[RC3E] > //Indirect via GC3D > nlcom [RC3D]_b[PRD]*[CESD]_b[RC3D] > > //Total indirect > nlcom [GC3E]_b[PRD]*[CESD]_b[GC3E]+[GC3D]_b[PRD]*[CESD]_b[GC3D] /// > +[RC3E]_b[PRD]*[CESD]_b[RC3E]+[RC3D]_b[PRD]*[CESD]_b[RC3D] > > capture program drop bootmm > program bootmm, rclass > syntax [if] [in] > sureg (GC3E PRD i.SEX AGE EDU i.UNEMP i.MARSTS i.NATIVITY) /// > (GC3D PRD i.SEX AGE EDU i.UNEMP i.MARSTS i.NATIVITY) /// > (RC3E PRD i.SEX AGE EDU i.UNEMP i.MARSTS i.NATIVITY) /// > (RC3D PRD i.SEX AGE EDU i.UNEMP i.MARSTS i.NATIVITY) /// > (CESD GC3E GC3D RC3E RC3D PRD i.SEX AGE EDU i.UNEMP i.MARSTS > i.NATIVITY) if NMV==1 > return scalar indGC3E = [GC3E]_b[PRD]*[CESD]_b[GC3E] > return scalar indGC3D = [GC3D]_b[PRD]*[CESD]_b[GC3D] > return scalar indRC3E = [RC3E]_b[PRD]*[CESD]_b[RC3E] > return scalar indRC3D = [RC3D]_b[PRD]*[CESD]_b[RC3D] > return scalar indtotal = > [GC3E]_b[PRD]*[CESD]_b[GC3E]+[GC3D]_b[PRD]*[CESD]_b[GC3D] /// > > +[RC3E]_b[PRD]*[CESD]_b[RC3E]+[RC3D]_b[PRD]*[CESD]_b[RC3D] > end > > bootstrap r(indGC3E) r(indGC3D) r(indRC3E) r(indRC3D) r(indtotal), bca > reps(1000) nodots: bootmm > estat boot, percentile bc bca > > > * > > > * > * 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/

**References**:**re: st: Analyzing multiple mediators***From:*"Ariel Linden, DrPH" <ariel.linden@gmail.com>

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