Dam, Marline van (2023) Criterion Validity of Prolonged Grief Disorder and Quality of Life: A Longitudinal Study. Bachelor thesis, Psychology.
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Abstract
A minority of bereaved individuals experiences severe, persistent, and disabling grief, termed prolonged grief. This can lead to grave mental and physical consequences, specifically for an individuals’ quality of life. In this study we aim to examine the predictive effects (criterion validity) of prolonged grief symptoms per the International Classification of Diseases 11th edition (ICD-11) and the Diagnostic and Statistical Manual of Mental Disorders, text revision, 5th edition (DSM-5-TR) on quality of life. A sample of 276 bereaved adults (mean age 54 years, 92% female) filled in a survey at baseline, 6 (n = 142) and 12 (n = 135) months later. The Traumatic Grief Inventory-Self Report Plus was used to measure the independent variables ICD-11 and DSM-5-TR prolonged grief symptoms. The European Health Interview Survey - Quality of Life 8-item index was used to measure the dependent variable QoL. Two simple linear regression analyses demonstrated that T1 ICD-11 and DSM-5-TR prolonged grief symptoms related negatively to T1 QoL, supporting concurrent test-criterion validity. Four hierarchical regression analyses demonstrated that T1 ICD-11 and DSM-5-TR symptoms significantly predict QoL at T2 and T3 whilst controlling for T1 QoL, supporting predictive test-criterion validity. Results show that DSM-5 and ICD-11 prolonged grief symptoms do predict lower QoL at later timepoints, while controlling for baseline QoL. We conclude that the analyses provide evidence for the criterion validity of the new prolonged grief symptom sets per ICD-11 and DSM-5-TR. Keywords: prolonged grief symptoms, quality of life, ICD-11, DSM-5-TR, criterion validity
| Item Type: | Thesis (Bachelor) |
|---|---|
| Supervisor name: | Eisma, M.C. |
| Degree programme: | Psychology |
| Differentiation route: | None [Bachelor Psychology] |
| Date Deposited: | 20 Feb 2023 08:56 |
| Last Modified: | 20 Feb 2023 08:56 |
| URI: | http://gmwpublic.studenttheses.ub.rug.nl/id/eprint/1704 |
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