Development of competency to stand trial rating scale in offenders with mental disorders.
- Author:
Xiao-Bing CHEN
1
;
Wei-Xiong CAI
Author Information
1. Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China. icygreenbing@hotmail.com
- Publication Type:Research Support, Non-U.S. Gov't
- MeSH:
Adolescent;
Adult;
Aged;
Aged, 80 and over;
Criminals/psychology*;
Female;
Forensic Psychiatry/methods*;
Humans;
Logistic Models;
Male;
Mental Competency/psychology*;
Mental Disorders/psychology*;
Middle Aged;
Psychiatric Status Rating Scales;
Young Adult
- From:
Journal of Forensic Medicine
2013;29(2):99-102
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:According with Chinese legal system, to develop a competency to stand trial rating scale in offenders with mental disorders.
METHODS:Proceeding from the juristical elements, 15 items were extracted and formulated a preliminary instrument named the competency to stand trial rating scale in offenders with mental disorders. The item analysis included six aspects, which were critical ratio, item-total correlation, corrected item-total correlation, alpha value if item deleted, communalities of items, and factor loading. The Logistic regression equation and cut-off score of ROC curve were used to explore the diagnostic efficiency.
RESULTS:The data of critical ratio of extreme group were 18.390-46.763; item-total correlation, 0.639-0.952; corrected item-total correlation, 0.582-0.944; communalities of items, 0.377-0.916; and factor loadings, 0.614-0.957. Seven items were included in the regression equation and the accuracy of back substitution test was 96.0%. The score of 33 was ascertained as the cut-off score by ROC fitting curve, the overlapping ratio compared with the expertise was 95.8%. The sensibility and the specificity were 0.938 and 0.966, respectively, while the positive and negative likelihood ratios were 27.67 and 0.06, respectively.
CONCLUSION:With all items satisfied the requirement of homogeneity test, the rating scale has a reasonable construct and excellent diagnostic efficiency.
