Article Questionable Insiders: Changing Positionalities of Interviewers throughout Stages of Migration Research Paula Pustulka 1 , Justyna Bell 2 , and Agnieszka Tr ˛ abka 3 Abstract This article addresses methodological issues related to the consequences of researchers’ range of insider identities that emerge over the course of completing subsequent stages of qualitative migration research projects. Taking on a temporal approach to the insider status evolving over the course of field entry, data collection, data analysis, and dissemination, this article engages with nuanced insider positionalities. These range from apparent, to trespassing, to distanced, and to ambassadorial insiderness. Exploring a specific case of Polish mobility, this article assumes a methodo- logical focus and argues that being “on the inside” of the migration research 1 Youth Research Center (S211), SWPS University of Social Sciences and Humanities, Warszawa, Poland 2 Norwegian Social Research (NOVA), Oslo Metropolitan University, Oslo, Norway 3 Institute of Applied Psychology, Jagiellonian University, Krako ´ w, Poland Corresponding Author: Paula Pustulka, Youth Research Center (S211), SWPS University of Social Sciences and Humanities, Chodakowska 19/31, 03-815 Warszawa, Poland. Email: ppustulka@swps.edu.pl Field Methods 1-19 ª The Author(s) 2019 Article reuse guidelines: sagepub.com/journals-permissions DOI: 10.1177/1525822X19839368 journals.sagepub.com/home/fmx