The reliability and validity of Reward Probability Index-Chinese version applied among individuals with opioid dependence / 中华行为医学与脑科学杂志
Chinese Journal of Behavioral Medicine and Brain Science
;
(12): 172-176, 2020.
Article
in Chinese
| WPRIM
| ID: wpr-867026
ABSTRACT
Objective:
To evaluate the reliability and validity of the Reward Probability Index-Chinese version (C-RPI) among individuals with opioid dependence.Methods:
A total of 160 individuals with opioid dependence were recruited from the methadone maintenance treatment(MMT) programs in Wuhan.The C-RPI was used in the investigation, and items/exploratory factors and confirmatory factors were adopted to analyze with IBM SPSS 22.0 and AMOS 24.0, respectively.Results:
The correlation between each item and the total score of the scale was 0.325-0.657 (all P<0.01) and the item discrimination of the scale was good.Exploratory factor analysis extracted two factors, including reward probability and environmental suppressors, and a load of each item on its factor ranged from 0.519 to 0.744.The fitting indexes of confirmatory factor analysis were as follows χ 2/ df=1.623, RMR=0.030, RMSEA=0.063, IFI=0.902, TLI=0.885, CFI =0.900.The internal consistency coefficient (Cronbach's α) of the C-RPI was 0.800; and there was no ceiling/floor effect on each dimension and total scale.Conclusion:
The classification of dimensions for the C-RPI is reasonable, and the scale has good reliability and validity to measure the ability to obtain environmental rewards for individuals with opioid dependence.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Behavioral Medicine and Brain Science
Year:
2020
Type:
Article
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