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A total of 694 bereaved individuals who had experienced the loss of a close person for a duration ranging from 12 to 24\u00a0months were included in this study and randomly divided into two separate datasets to conduct factor analyses. The results of both EFA and CFA revealed a single-factor structure for the PG-13-R-K. Moreover, the results of reliability and validity tests showed adequate internal consistency and concurrent validity. These findings suggest that the PG-13-R-K is a reliable and valid tool for assessing PGD symptoms among bereaved Korean adults. 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