Boelen, P. A., & Bout, J. van den (2007). Examination of the consensus and refined criteria for complicated grief. Death Studies, 31, 155-164.
In the late 1990s, a panel of experts proposed criteria for complicated grief (CG) and found these to have satisfactory operating characteristics. The present study aimed to replicate that finding in 4 groups of mourners divided by cause of loss and time from loss. Data were available from 1,052 bereaved individuals. All had completed the revised Inventory of Complicated Grief through the Internet. Receiver operator characteristic analysis was used to analyze data. Results showed that, in all 4 groups, the proposed criteria for CG performed well at distinguishing between people who did and did not meet criteria for caseness of CG.