Masaru Kohno received his PhD in Political Science from Stanford University in 1994. He had previously taught at the University of British Columbia and had been a National Fellow at Hoover Institution, before he joined Waseda University in Tokyo where he is currently a professor in the Department of Political Science and Economics. Professor Kohno also serves as a Senior Program Officer of the Social Science Section at Japan Society for the Promotion of Science.Yoshitaka Nishizawa received his PhD in Political Science from Yale University in 1989. He first taught at Meijigakuin University in Tokyo and he moved to Doshisha University in Kyoto in 1997. Professor Nishizawa is a member of the American Political Science Association, the Japanese Political Science Association, and the Japanese Association of Electoral Studies (JAES). He served as President for the JAES for the 2010–12 term.

• Preface, Aiji Tanaka 1. Introduction, Masaru Kohno and Yoshitaka Nashizawa 2. Survey Modes and Data Quality, Tetsuya Matsubayashi 3. No-Opinion Options and Survey Responses, Tetsuya Matsubayashi 4. Have You Really Not Participated? Social Desirability Bias in the Opposite Direction, Yoshitaka Nishizawa and Koichi Kuriyama 5. Examining Response Order Effects through the Computer Randomization, Ryosuke Imai and Airo Hino 6. What Can We Learn from "Response Time"?, Kiichiro Arai and Norihiro Mimura 7. Public Goods Provision Experiment with CASI Survey, Kazumi Shimizu, Yuko Morimoto, Motoki Watabe, Takeshi Iida and Koichi Kuriyama