Korean Version of Inventory of Complicated Grief Scale: Psychometric Properties in Korean Adolescents.
10.3346/jkms.2016.31.1.114
- Author:
Doug Hyun HAN
1
;
Jung Jae LEE
;
Duk Soo MOON
;
Myoung Jin CHA
;
Min A KIM
;
Seonyeong MIN
;
Ji Hoon YANG
;
Eun Jeong LEE
;
Seo Koo YOO
;
Un Sun CHUNG
Author Information
1. Department of Psychiatry, Chung Ang University Hospital, Seoul, Korea.
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords:
Complicated Grief;
Adolescent;
Factor Analysis, Statistical;
Reliability of Results;
Screening
- MeSH:
Adolescent;
Child;
Factor Analysis, Statistical;
Female;
*Grief;
Humans;
Male;
Psychometrics/*methods;
Reproducibility of Results;
Republic of Korea;
Surveys and Questionnaires
- From:Journal of Korean Medical Science
2016;31(1):114-119
- CountryRepublic of Korea
- Language:English
-
Abstract:
We aimed to validate the Inventory of Complicated Grief (ICG)-Korean version among 1,138 Korean adolescents, representing a response rate of 57% of 1,997 students. Participants completed a set of questionnaires including demographic variables (age, sex, years of education, experience of grief), the ICG, the Children's Depression Inventory (CDI) and the Lifetime Incidence of Traumatic Events-Child (LITE-C). Exploratory factor analysis was performed to determine whether the ICG items indicated complicated grief in Korean adolescents. The internal consistency of the ICG-Korean version was Cronbach's alpha=0.87. The test-retest reliability for a randomly selected sample of 314 participants in 2 weeks was r=0.75 (P<0.001). Concurrent validity was assessed using a correlation between the ICG total scores and the CDI total scores (r=0.75, P<0.001). The criterion-related validity based on the comparison of ICG total scores between adolescents without complicated grief (1.2±3.7) and adolescent with complicated grief (3.2±6.6) groups was relatively high (t=5.71, P<0.001). The data acquired from the 1,138 students was acceptable for a factor analysis (Kaiser-Meyer-Olkin Measure of Sampling Adequacy=0.911; Bartlett's Test of Sphericity, chi2=13,144.7, P<0.001). After omission of 3 items, the value of Cronbach's alpha increased from 0.87 for the 19-item ICG-Korean version to 0.93 for the 16-item ICG-Korean version. These results suggest that the ICG is a useful tool in assessing for complicated grief in Korean adolescents. However, the 16-item version of the ICG appeared to be more valid compared to the 19-item version of the ICG. We suggest that the 16-item version of the ICG be used to screen for complicated grief in Korean adolescents.
