The Crowdsourced Replication Initiative: Investigating Immigration and Social Policy Preferences. Executive Report.
Authors: Breznau Nate , Rinke Eike Mark , Wuttke Alexander , Adem Muna , Adriaans Jule , Alvarez-Benjumea Amalia , Andersen Henrik Kenneth , Auer Daniel , Azevedo Flavio , Bahnsen Oke , Balzer Dave , Bauer Gerrit , Bauer Paul , Baumann Markus , Baute Sharon , Benoit Verena , Berning Carl , Bernauer Julian , Berthold Anna , Bethke Felix , Biegert Thomas , Blinzler Katharina , Blumenberg Johannes , Bol Thijs , Bobzien Licia , Bohman Andrea , Bostic Amie , Brzozowska Zuzanna , Burgdorf Katharina , Burger Kaspar , Busch Kathrin , Castillo Juan Carlos , Chan Nathan , Christmann Pablo , Connelly Roxanne , Czymara Christian S. , Damian Elena , Edelmann Achim , Ecker Alejandro , Eger Maureen A. , Ellerbrock Simon , Forke Anna , Forster Andrea Gabriele , Gavras Konstantin , Gayle Vernon , Gaasendam Chris , Gessler Theresa , Gnambs Timo , Godefroidt Amélie , Greinert Alexander , Groß Martin , Grömping Max , Gruber Stefan , Gummer Tobias , Hadjar Andreas , Heisig Jan Paul , Hellmeier Sebastian , Heyne Stefanie , Hirsch Magdalena , Hjerm Mikael , Hochman Oshrat , Höffler Jan H. , Hövermann Andreas , Huth Nora , Hunger Sophia , Hunkler Christian , Ignacz Zsofia , Jacobs Laura , Jacobsen Jannes , Jaeger Bastian , Jungkunz Sebastian , Jungmann Nils , Kauff Mathias , Kleinert Manuel , Klinger Julia , Kolb Jan-Philipp , Kołczyńska Marta , Kuk John , Kunißen Katharina , Kurti Dafina , Lersch Philipp M. , Löbel Lea-Maria , Lutscher Philipp , Mader Matthias , Madia Joan Eliel , Malancu Natalia Cornelia , Maldonado Luis , Marahrens Helge , Martin Nicole , Martinez Paul , Mayerl Jochen , MAYORGA OSCAR Jose , McManus Patricia A. , Meeusen Cecil , Meierrieks Daniel , Mellon Jonathan , Merhout Friedolin , Merk Samuel , Meyer Daniel , Micheli Leticia , Mijs Jonathan , Moya Cristóbal , Neunhoeffer Marcel , Nüst Daniel , Nygård Olav , Ochsenfeld Fabian , Otte Gunnar , Pechenkina Anna , Prosser Christopher , Raes Louis , Ralston Kevin , Ramos Miguel , Roets Arne , Rogers Jonathan , Ropers Guido , Samuel Robin , Sand Gergor , Schachter Ariela , Schaeffer Merlin , Schieferdecker David , Schlueter Elmar , Schmidt Katja , Schmidt Regine , Schmidt-Catran Alexander , Schmiedeberg Claudia , Schneider Jürgen , Schoonvelde Martijn , Schulte-Cloos Julia , Schumann Sandy , Schunck Reinhard , Schupp Jürgen , Seuring Julian , Silber Henning , Sleegers Willem W. A. , Sonntag Nico , Staudt Alexander , Steiber Nadia , Steiner Nils , Sternberg Sebastian , Stiers Dieter , Striessnig Erich , Stojmenovska Dragana , Storz Nora , Stroppe Anne-Kathrin , Teltemann Janna , Tibajev Andrey , Tung Brian B. , Vagni Giacomo , Van Assche Jasper , van der Linden Meta , van der Noll Jolanda , Van Hootegem Arno , Vogtenhuber Stefan , Voicu Bogdan , Wagemans Fieke Maria Antoinet , Wagner Kyle , Wehl Nadja , Wernere Hannah , Wiernik Brenton M. , Winter Fabian , Wolf Christof , Yamada Yuki , Zakula Björn , Ziller Conrad , Zins Stefan , Zhang Nan , Żółtak Tomasz , Nguyen Hung Hoang Viet 
Published: January 2019

In an era of mass migration, social scientists, populist parties and social movements raise concerns over the future of immigration-destination societies. What impacts does this have on policy and social solidarity? Comparative cross-national research, relying mostly on secondary data, has findings in different directions. There is a threat of selective model reporting and lack of replicability. The heterogeneity of countries obscures attempts to clearly define data-generating models. P-hacking and HARKing lurk among standard research practices in this area.This project employs crowdsourcing to address these issues. It draws on replication, deliberation, meta-analysis and harnessing the power of many minds at once. The Crowdsourced Replication Initiative carries two main goals, (a) to better investigate the linkage between immigration and social policy preferences across countries, and (b) to develop crowdsourcing as a social science method. The Executive Report provides short reviews of the area of social policy preferences and immigration, and the methods and impetus behind crowdsourcing plus a description of the entire project. Three main areas of findings will appear in three papers, that are registered as PAPs or in process.