An in-depth psychometric analysis of the Connor-Davidson Resilience Scale: calibration with Rasch-Andrich model

Health and Quality of Life Outcomes

Research

Benito Arias Martínez¹  María Teresa Crespo Sierra¹  Agustín Martínez-Molina²  Víctor B. Arias González²  Fernando P. Ponce² 

[1] Facultad de Educación y Trabajo Social [School of Education and Social Work], Universidad de Valladolid [University of Valladolid], Av. De Belén s/n, Valladolid, España;Facultad de Psicología [School of Psychology], Universidad de Talca [University of Talca], 2 norte 685, Av. Lircay s/n, Talca, Chile;

关键词: Differential Item Functioning;    Item Response Theory;    Latent Trait;    Item Difficulty;    Item Bank;   

DOI  :  10.1186/s12955-015-0345-y

 received in 2015-01-03, accepted in 2015-09-10,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundThe Connor-Davidson Resilience Scale (CD-RISC) is inarguably one of the best-known instruments in the field of resilience assessment. However, the criteria for the psychometric quality of the instrument were based only on classical test theory.MethodThe aim of this paper has focused on the calibration of the CD-RISC with a nonclinical sample of 444 adults using the Rasch-Andrich Rating Scale Model, in order to clarify its structure and analyze its psychometric properties at the level of item.ResultsTwo items showed misfit to the model and were eliminated. The remaining 22 items form basically a unidimensional scale. The CD-RISC has good psychometric properties. The fit of both the items and the persons to the Rasch model was good, and the response categories were functioning properly. Two of the items showed differential item functioning.ConclusionsThe CD-RISC has an obvious ceiling effect, which suggests to include more difficult items in future versions of the scale.

【 授权许可】

CC BY   
© Arias González et al. 2015