Department of Psychology, Health & Technology, Faculty of Behavioural Management and Social Sciences, University of Twente, Enschede, the Netherlands.
Department of Clinical Psychology, Faculty of Social Sciences, Utrecht University, Utrecht, The Netherlands.
Eur J Psychotraumatol. 2024;15(1):2391248. doi: 10.1080/20008066.2024.2391248. Epub 2024 Aug 20.
Prolonged grief disorder (PGD) has been added to the ICD-11 and DSM-5-TR. The Traumatic Grief Inventory-Self Report Plus (TGI-SR+) assesses self-rated PGD intensity as defined in ICD-11 and DSM-5-TR. The TGI-SR + is available in multiple languages, but has not been validated yet in Norwegian. The aim of this study was to evaluate the psychometric properties of the Norwegian TGI-SR + . Bereaved adults ( = 307) whose child or sibling died ≥6 months ago due to a sudden or violent loss completed the TGI-SR + and measures for posttraumatic stress, depression, and precursor PGD symptoms. We examined the factor structure and internal consistency of the ICD-11 and DSM-5-TR PGD items. Convergent validity and known-groups validity was evaluated. Probable PGD cases, pair-wise agreement between diagnostic scoring rules for both PGD criteria-sets, and cut-off scores were calculated. The 1-factor model for ICD-11 and DSM-5-TR PGD showed the best fit and demonstrated good internal consistency. Convergent validity was supported by strong associations between summed ICD-11 and DSM-5-TR PGD scores and summed posttraumatic stress, depression, and precursor prolonged grief scores. Known-groups validity was supported by PGD intensity being related to educational level and time since loss. The perfect pair-wise agreement was reached using the ICD-11 and DSM-5-TR PGD diagnostic scoring rules. The optimal cut-off score for detecting probable PGD cases, when summing all TGI-SR + items, was ≥73. The Norwegian TGI-SR + seems a valid and reliable instrument to assess ICD-11 and DSM-5-TR PGD intensity after losing a child or sibling under traumatic circumstances.
持续性丧亲障碍（PGD）已被添加到 ICD-11 和 DSM-5-TR 中。创伤性悲伤量表自我报告加（TGI-SR+）评估 ICD-11 和 DSM-5-TR 中定义的自我评定 PGD 强度。TGI-SR+有多种语言版本，但尚未在挪威进行验证。本研究旨在评估挪威 TGI-SR+的心理测量特性。在过去 6 个月内，因突然或暴力丧失而失去孩子或兄弟姐妹的丧亲成年人（n=307）完成了 TGI-SR+和创伤后应激、抑郁和前驱 PGD 症状的测量。我们检查了 ICD-11 和 DSM-5-TR PGD 项目的因子结构和内部一致性。评估了聚合效度和已知群体效度。计算了可能的 PGD 病例、两种 PGD 标准集诊断评分规则之间的两两一致性以及截断分数。ICD-11 和 DSM-5-TR PGD 的 1 因子模型显示出最佳拟合，具有良好的内部一致性。聚合效度得到了 ICD-11 和 DSM-5-TR PGD 总分与创伤后应激、抑郁和前驱延长悲伤总分之间的强烈关联的支持。已知群体效度得到了 PGD 强度与教育程度和丧失时间相关的支持。使用 ICD-11 和 DSM-5-TR PGD 诊断评分规则，达到了完美的两两一致性。当总结所有 TGI-SR+项目时，检测可能的 PGD 病例的最佳截断分数为≥73。挪威 TGI-SR+似乎是一种有效的、可靠的工具，可以评估在创伤情况下失去孩子或兄弟姐妹后的 ICD-11 和 DSM-5-TR PGD 强度。
