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Office hours (2007-2008)
On sabbatical leave at the Department of Statistics, University of Auckland, New Zealand. Please send email to contact me.
Academic Interests
I am interested in developing methodology for the analysis of missing and/or
incomplete data as well as the analysis of longitudinal or repeated measures data.
My current work involves development of methods for analyzing
multiple informant data
in services research, alcohol and drug abuse studies, and psychiatric epidemiology, as well as research in statistical education.
I helped to coordinate a workshop on statistical consulting at liberal arts colleges.
I organize the applied statistics lecture series at Smith.
I also have notes from my 2007 JSM talk on incorporating the ARTIST online assessments into intro statistics classes.
I also created the Statistics Haiku Project and the Linear Algebra Haiku Project.
Publications
(Manuscripts appear with permission from the publishers, paperwork
available upon request).
Click here for complete list of publications.
Horton NJ,
Laird NM,
and Zahner GEP. Use of multiple informant
data as a predictor
in psychiatric epidemiology. International
Journal of Methods in Psychiatric Research 1999; 8:6-18.
Horton NJ and
Laird NM.
Maximum likelihood analysis
of generalized linear models with missing covariates.
Statistical Methods in Medical Research
1999; 8:37-50.
Horton NJ and Lipsitz SR. Review
of software to fit
generalized estimating equation (GEE)
regression models. The American Statistician 1999; 53:160-169.
Horton NJ and
Laird NM.
Maximum likelihood analysis
of logistic regression models with incomplete covariate data
and auxiliary information.
Biometrics
2001; 57:34-42.
Horton NJ and Lipsitz SR. Multiple imputation in practice: Comparison of
software packages for regression models with missing variables.
The American Statistician, 2001; 55(3):244-254.
Horton NJ,
Laird NM,
Murphy JM,
Monson RR,
Sobol AM and Leighton AH.
Multiple informants: mortality
associated with psychiatric disorders in the Stirling County Study.
American Journal of Epidemiology, 2001; 154(7):649-656.
Horton NJ and Fitzmaurice GM. Maximum likelihood estimation of bivariate logistic models for incomplete responses with indicators of ignorable and non-ignorable missingness. Journal of the Royal Statistical Society, Series C (Applied Statistics), 2002; 51(3):281-295.
Horton NJ, Saitz R, Laird NM and Samet JH.
A method for modeling utilization data from multiple sources: application in a study of linkage to primary care.
Health Services and Outcomes Research Methodology, 2002; 3:211-223.
Horton NJ, Lipsitz SR, and
Parzen M. A potential for
bias when rounding in multiple imputation.
The American Statistician, 2003; 57(4):229-232.
Horton NJ and Fitzmaurice
GM. Regression analysis of multiple source
and multiple informant data from complex survey samples. Statistics in Medicine, 2004; 23(18):2911-2933.
Horton NJ, Brown ER, and
Qian L (Smith College '05). Use of R as a toolbox for
mathematical statistics exploration.
The American Statistician, 2004; 58(4):343-357.
Horton NJ and Shapiro EC (Smith College '04). Statistical
sleuthing during epidemics: maternal influenza and schizophrenia.
Chance, 2005; 18(1):11-18.
Horton NJ and Switzer SS (Smith College '06). Statistical methods in the Journal.
New England Journal of Medicine, 2005; 353(18):1977-1979.
Switzer SS (Smith College '06) and Horton NJ. What your doctor should
know about statistics (but perhaps doesn't).
Chance, 2007; 20(1):17-21 (Notes [10MB] and talk are available).
Horton NJ and Kleinman KP. Much ado about nothing: A comparison of
missing data methods and software to fit incomplete data regression models.
The American Statistician, 2007; 61(1):79-90.
(Appendix, notes and a talk).
Horton NJ, Kim E and Saitz R. A cautionary note regarding count models of alcohol consumption in randomized controlled trials.
BMC Medical Research Methodology, 2007; 7:9.
Horton NJ. Clinician attitudes towards biostatistics.
Mayo Clinic Proceedings, 2007; 82(12):1578, see also related article.
Personal Information
I'm active with the Boston Chapter of the American
Statistical Association, and organized a short-course on
causal inference in October, 2005.
I'm a
Quaker (member of the Religious Society
of Friends) and work with the
American
Friends Service Committee. I helped to edit the
Directory of
Meetings in Salem Quarterly Meeting.
I'm enthusiastic about rail trail developments in the
Pioneer Valley and
beyond. I am a co-founder
and current President of
the Friends of Northampton Trails and
Greenways and encourage you to join the fntg mailing list.
Click here to join fntg.
I like to juggle.
My friend George makes lovely windsor
chairs.
Finally, I'm active with
Health in Harmony, Inc., and in my copious spare time,
chase after
my family.
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