http://www.w-lab.de/survey/sonja/Except_Distinct_engl/Anfang.html

Please help us sorting a pile of pictures two photographers mixed up. After sorting them you will be asked to answer some questions about the pictures. Have fun!

Web Experiment

Unversity of Potsdam

Sonja Geiger

September 12th 2005 - November 12th 2005