1. Department of Statistics School of Social Work University of Washington Seattle WA USA
2. The Center for Statistics and the Social Sciences University of Washington Seattle WA USA
3. Laboratoire J. A. Dieudonné Université Cote d’AzurCNRS Nice France
4. Department of Statistical Modelling Institute of Computer Science of the Czech Academy of SciencesPrague Czech Republic
5. Faculty of Education Charles University Prague Czech Republic
6. Department of Philosophy University of Washington Seattle WA USA