[HTML][HTML] Development of the international prolonged grief disorder scale for the ICD-11: Measurement of core symptoms and culture items adapted for Chinese and …
C Killikelly, N Zhou, M Merzhvynska, EM Stelzer… - Journal of Affective …, 2020 - Elsevier
C Killikelly, N Zhou, M Merzhvynska, EM Stelzer, T Dotschung, S Rohner, LH Sun…
Journal of Affective Disorders, 2020•ElsevierBackground Prolonged grief disorder (PGD) is a new mental health disorder included in the
WHO ICD-11 however, the operationalization of the guidelines still needs to be empirically
validated, particularly in different cultural contexts. Here we provide a preliminary validation
study of the new International Prolonged Grief Disorder Scale (IPGDS) that serves to be the
first self-report questionnaire directly based on the ICD-11 PGD and contains culturally
adapted items. Methods In addition to core symptom items new culturally specific items were …
WHO ICD-11 however, the operationalization of the guidelines still needs to be empirically
validated, particularly in different cultural contexts. Here we provide a preliminary validation
study of the new International Prolonged Grief Disorder Scale (IPGDS) that serves to be the
first self-report questionnaire directly based on the ICD-11 PGD and contains culturally
adapted items. Methods In addition to core symptom items new culturally specific items were …
Background
Prolonged grief disorder (PGD) is a new mental health disorder included in the WHO ICD-11 however, the operationalization of the guidelines still needs to be empirically validated, particularly in different cultural contexts. Here we provide a preliminary validation study of the new International Prolonged Grief Disorder Scale (IPGDS) that serves to be the first self-report questionnaire directly based on the ICD-11 PGD and contains culturally adapted items.
Methods
In addition to core symptom items new culturally specific items were developed in two phases. Phase 1: key informant interviews with 10 German-speaking and 14 Chinese experts in grief and mental health, followed by a focus group with four bereaved German-speaking participants. Phase 2: 214 German-speaking and 325 Chinese bereaved participants completed self-report questionnaires.
Results
Phase 1 resulted in 19 potential culturally relevant items (e.g. feeling stuck in grief). Phase 2 exploratory factor analysis confirmed the one-dimensional nature of the IPGDS, additionally the 32-item scale revealed two factors (core grief and culturally specific symptoms). Psychometric analysis revealed strong internal consistency, concurrent validity and criterion validity.
Limitations
The German-speaking and Chinese samples significantly differed in terms of several demographic variables including age, gender and type of loss.
Conclusions
This preliminary validity study confirms that the IPGDS is a valid and reliable measure of the new ICD-11 PGD guidelines. This is the first scale of disordered grief to contain both core items and culturally specific supplementary items and aims to improve the clinical utility of the ICD-11 narrative approach.
Elsevier
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