Tác giả: Gevisa La Rocca

Wander van der Vaart is Associate Professor of Social Research Methodology at the University of Humanistic Studies, Utrecht (The Netherlands) and serves as a Vice-President of RC33, the Research Committee on Logic and Methodology of the International Sociological Association. He has a background in quantitative and qualitative research methods, political science and psychology.  His interests are in flexible surveys and study designs for hard-to-study populations and phenomena. His publications appear in methods oriented journals (Field Methods, Journal of Official Statistics, Quality and Quantity, International Journal of Public Opinion Research) and substantive journals (Journal of Aging and Environment, Applied Cognitive Psychology).