Tom A.B. Snijders is Professor of Statistics in the Social Sciences at the University of Oxford,
and Professor of Methodology and Statistics in the Faculty of Behavioral and Social Sciences at the University of Groningen .

In Oxford, I am appointed in the Department of Statistics and the Department of Politics and International Relations and I am a fellow of Nuffield College.

In Groningen, I work in the Department of Sociology and in the ICS (Interuniversity Center for Social Science Theory and Methodology), a research school that is a cooperative activity of the Universities of Groningen, Utrecht, and Nijmegen.

My partner is Lonnie ter Braak (M.D.), our children are Anke, Tineke, and Paul.

 My main research interests are the following:

• social network analysis (see the web site of INSNA, the International Network of Social Network Analysis );
  I am especially interested in statistical methods for social networks and in network evolution;
  more information is at my social networks page.
• multilevel analysis (for general information about this topic see the web site of the Multilevel Project );
  of the textbook on Multilevel Analysis, written by myself and Roel Bosker, the second edition appeared November 2011 at Sage Publishers;
  more information is at my multilevel page.
• social science statistics in general;
• mathematical sociology;
• item response theory.

For further information you can go on to:

1. my Social Network Analysis Page:
   this also contains information about the following computer programs:

SIENA for analysis of longitudinal network data,
BLOCKS for stochastic block modeling,
ZO for the analysis of 0-1 matrices with given row and column sums,
StOCNET which is a program suite containing, among others, BLOCKS, ZO, and p2;
SNOWBALL for the estimation of the size of a hidden population using a snowball sample;
2. a lot about Multilevel Analysis:

remarks, corrections, and data sets (plus MLwiN and some HLM and MIXOR setups) for the Snijders-Bosker textbook;
introduction to MLwiN and Mln/MLwiN macros;
PINT program for Power analysis IN Two-level designs;
TWOMOK paper & program for two-level scale analysis ('ecometrics');
3. current organisational activities;
4. coming presentations;
5. seminars ;
6. selected list of publications + abstracts;
   list of all publications;
   curriculum vitae;

• Main current organisational activities of Tom A.B. Snijders
• Associate editor of Social Networks.
  For submitting articles to Social Networks, use Elsevier's author gateway for Social Networks.
• Associate editor of Annals of Applied Statistics
• Associate editor of Journal of Social Structure
• Member of the Editorial Board of Methodology

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• Some recent and coming performances and activities.
• An honorary doctorate in the Social Sciences at the University of Stockholm was awarded to me in 2005.
• I am a Professorial Fellow in the School of Behavioural Sciences(Dept. of Psychology) at the University of Melbourne, collaborating with profs. Philippa Pattison and Garry Robins.
• At the XXX International Sunbelt Social Networks Conference held June 29 - July 4, 2010, in Riva del Garda, Italy, I had the honor to be the keynote speaker.
• On December 16, 2011, I received a honorary doctorate from the Université Paris-Dauphine.
• I gave a tutorial and master class at the second Advanced Siena Users' Meeting (AdSUM-2012), March 11-12, 2012, at Arizona State University in Tempe, Arizona, organized by David Schaefer.
• At the SUNBELT XXXII International Sunbelt Social Network Conference, March 12-18, 2012 in Redondo Beach, CA, I taught a workshop on longitudinal network modeling using Siena, and presented about longitudinal network modeling.
• I participated as a keynote speaker in the Modern Modeling Methods (M³) Conference at the University of Connecticut (May 21-24, 2012), and taught a pre-conference workshop on Methods for Network Dynamics.
• At the Multilevel Social Networks Symposium, June 19-20 in Manchester, I gave the keynote address about "The Multiple Flavours of Multilevel Issues for Networks".
• At the 8th UKSNA Conference, Bristol, 28th-30th June 2012, I taught a workshop about longitudinal network modeling using RSIENA and with Johan Koskinen presented about Multilevel Longitudinal Analysis of Social Networks.
• At the 9th UKSNA Conference, Greenwich, 27th-29th June 2013, I will present a lecture "Variance reduction in the Robbins-Monro algorithm used in RSiena".
• For SIENA workshops and other events, see the SIENA website.
  

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• Some seminars held at Nuffield college in Oxford:
  • The Nuffield Seminars in Social Networks, organised by Bernie Hogan, Sandra Gonzalez Bailon, and Tom Snijders.
  • Informal seminar on statistical modeling of social networks .

• Some seminars held at the ICS in Groningen:
  • Sociology seminar, coordinated by Rene Veenstra