Optimizing Background Questionnaire Score Comparability and Model Fit in International Survey Assessments

• In Event: Background Questions and Surveys

Abstract

To achieve both accurate model data fit and high comparability of scores across many countries and language groups, an item fit RMSD statistic threshold value of 0.20 may be optimal to trigger the estimation of group-specific item parameters for a wide range of background questionnaire scales.

Authors

• Selene Sunmin Lee

• Frederic Robin, ETS