“…Are the results sensitive to analyst choices or are they relatively robust across a range of decisions? A substantial literature has worked to make sense of state-level policy in this area, and scholars differ in how they measure state immigrant policy activity (Boushey & Luedtke, 2011;Filindra, 2013;Hero & Preuhs, 2007;Marquez & Schraufnagel, 2013;Monogan, 2013a;Nicholson-Crotty & Nicholson-Crotty, 2011;Pham & Van, 2014;Reich & Barth, 2012;Rivera, 2014;Schildkraut, 2001;Ybarra, Sanchez, & Sanchez, 2016). Some studies aggregate over time to analyze cross-sectional variance only, others split welcoming and hostile laws to be considered separately, some use panel data to consider the overtime patterns, and finally some subdivide laws by policy subarea.…”