van der Veer Kees, Ommundsen Reidar, Larsen Knud S, Le Hao Van, Krumov Krum, Pernice Regina E, Romans Gerardo Pastor
Department of Social Research Methodology, VUA, De Boelelaan 1081c, NL-1081 HV Amsterdam, The Netherlands.
Psychol Rep. 2004 Jun;94(3 Pt 1):897-906. doi: 10.2466/pr0.94.3.897-906.
This research examined the possibility of developing Mokken cumulative scales measuring attitudes toward illegal immigrants in a 9-nation sample. A total of 1,407 respondents primarily from national and regional universities participated in the surveys including the 20-item Illegal Immigration Scale. The scales displayed acceptable reliability with coefficients alpha ranging from .79 to .93. A Procrustes analysis yielded coefficients of congruence with the previously established three-factor solution. The amount of variance accounted for varied between 33.1 and 54.7%, supporting the presence of other factors in attitudes toward illegal immigrants. Mokken scale analysis yielded robust and economical scales in two clusters of national samples.
