1. Editorial

   • Wilfried Seidel

   EDITORIAL Pages: 1 - 1

2. Introduction: Item nonresponse and data quality

   • Regina T. Riphahn

   Abhandlungen/Articles Pages: 3 - 5

3. Characteristics and impact of faked interviews in surveys – An analysis of genuine fakes in the raw data of SOEP

   • Joerg–Peter Schraepler
   • Gert G. Wagner*

   Abhandlungen/Articles Pages: 7 - 20

4. Factors that influence reading and comprehension of branching instructions in self–administered questionnaires

   • Cleo D. Redline
   • Don A. Dillman
   • Robert H. Creecy*

   Abhandlungen/Articles Pages: 21 - 38

5. Rounded responses to income questions

   • Jens U. Hanisch*

   Abhandlungen/Articles Pages: 39 - 48

6. Item nonresponse on income questions in panel surveys: Incidence, imputation and the impact on inequality and mobility

   • Joachim R. Frick
   • Markus M. Grabka*

   Abhandlungen/Articles Pages: 49 - 61

7. On the effect of item nonresponse on the estimation of a two–panel–waves wage equation

   • Martin Spiess
   • Jan Goebel*

   Abhandlungen/Articles Pages: 63 - 74

8. Multivariate control charts based on a projection approach

   • Olha Bodnar
   • Wolfgang Schmid

   Abhandlungen/Articles Pages: 75 - 93

9. Wolfgang Wetzel in memoriam

   • Gerd Hansen

   Rundschau / News & Reports Pages: 95 - 97

10. Buchbesprechungen / Book reviews

    Literatur / Books Pages: 98 - 105