Novel research methods are needed to explore and honour the diversity present in organizational and national populations. The importance of measurement equivalence in survey research has been emphasized by researchers in cross-cultural studies involving cross-national samples. Heterogeneity of respondents is evident, even expected in cross-national samples, however, less evident and potentially equally critical is the growing ethnic heterogeneity of several national populations. Yet organizational research has largely treated such populations as homogeneous groups.
Measurement items that function differently for different groups in a population can be diagnosed using different techniques termed DIF (Differential Item Functioning) analyses. This paper discusses techniques based on Item Response Theory (IRT), and argues for their increased use in organizational research based on the growing number of immigrant populations in various countries. In light of changing demographics, traditional methods of establishing the validity of survey research are not sufficient, and this paper argues for more rigor in analyses of bias in measurement items.
|Keywords:||Immigrant Populations, Diversity, Differential Item Functioning, Measurement Equivalece, Methodological Challenges|
PhD Candidate, Management, Eric Sprott School of Business, Carleton University, Ottawa, Ontario, Canada
Associate Professor, Sprott School of Business, Carleton University, Ottawa, Ontario, Canada
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