Author(s): Holly Prigerson et al.
Collection Method: Self-report questionnaire
Scoring Method: Contains 19 first-person statements concerning the immediate bereavement-related thoughts and behaviours of the respondent. There are 5 response options ranging from “Never” (1) to “Always” (5).
Number of questions/statements: 19
Devised to assess indicators of pathological grief, such as anger, disbelief and hallucinations. This is in contrast to the TRIG which assesses more normal grief symptoms. The ICG is a scale with demonstrated internal consistency, and provides an easily administered assessment for the symptoms of complicated grief.