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Published in: Health and Quality of Life Outcomes 1/2015

Open Access 01-12-2015 | Research

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

Authors: Víctor B. Arias González, María Teresa Crespo Sierra, Benito Arias Martínez, Agustín Martínez-Molina, Fernando P. Ponce

Published in: Health and Quality of Life Outcomes | Issue 1/2015

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Abstract

Background

The 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.

Method

The 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.

Results

Two 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.

Conclusions

The CD-RISC has an obvious ceiling effect, which suggests to include more difficult items in future versions of the scale.
Appendix
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Metadata
Title
An in-depth psychometric analysis of the Connor-Davidson Resilience Scale: calibration with Rasch-Andrich model
Authors
Víctor B. Arias González
María Teresa Crespo Sierra
Benito Arias Martínez
Agustín Martínez-Molina
Fernando P. Ponce
Publication date
01-12-2015
Publisher
BioMed Central
Published in
Health and Quality of Life Outcomes / Issue 1/2015
Electronic ISSN: 1477-7525
DOI
https://doi.org/10.1186/s12955-015-0345-y

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