Abstract
Co-rumination is a type of maladaptive social sharing characterized by the excessive discussion of personal problems with a negative focus. Past studies have proposed several ways of creating subscales for its measurement using the Co-Rumination Questionnaire, but only a few studies have examined the psychometric properties of those subscales. This study examines four alternative factor structures of the Co-Rumination Questionnaire, with three factor structures from existing studies and the fourth factor structure from the modification of the existing factor structures. The alternative factor structures were evaluated on the model fit statistics and the factor reliability. The result revealed that, among the proposed alternatives, the 4-factor structure from the observational study showed a superior fit to the data and the factor structure modified from the 4-factor structure was most suitable for creating subscales. The finding of this study addresses the possibility of examining the different facets of co-rumination. The implications and directions for future research are discussed.