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Adaptation and validation of the self-report version of the scale for measuring quality of life in people with acquired brain injury (CAVIDACE)

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Abstract

Purpose

The disability and resulting dependence after acquired brain injury (ABI) significantly reduces quality of life (QoL), making the correct assessment of QoL important. However, the instruments currently used to assess QoL are either reductionist, including only health-related aspects, or, like the CAVIDACE scale, are based on multidimensional models but ignore the individual’s perspective. Therefore, the purpose of this study is to validate the self-report version of the CAVIDACE scale.

Method

The sample consisted of 345 adults with ABI aged between 18 and 91 years (M = 54.83; SD = 14.91). The participants’ QoL was evaluated by professionals and family members and by the participants themselves, using the original version of the CAVIDACE scale and an adapted self-report version. The following complementary variables were also measured: social support, depression, community integration, and resilience.

Results

The results supported the internal structure of the scale based on the theoretical model. According to this model, QoL is composed of eight first-order intercorrelated domains (RMSEA = 0.050, CFI = 0.891, TLI = 0.881). The internal consistency, determined by omega rank, was adequate in seven of the eight domains, ranging between 0.66 (PW) and 0.87 (SI). The convergent and discriminant validity of the scale was very good overall.

Conclusions

The self-report version of the CAVIDACE was demonstrated to be a specific instrument with very good psychometric properties and is a very useful complement in the assessment of QoL in people with ABI.

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Acknowledgements

We gratefully acknowledge the funding and support of the Spanish Ministry of Economy and Competitiveness (Grant PSI2015-65193-P [MINECO/FEDER, UE]) and the fellowship provided to Alba Aza Hernández (BES-2016-078252) of the Spanish Ministry of Economy and Competitiveness. We would also like to thank the people with brain injury, their relatives, the professionals, and the organizations for completing the questionnaires and for their support on this project.

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Authors and Affiliations

  1. Faculty of Psychology, University of Salamanca, Avda. de la Merced, 109-131, 37005, Salamanca, Spain

    Alba Aza, Miguel Ángel Verdugo, María Begoña Orgaz, María Fernández & Antonio Manuel Amor

  2. Institute on Community Integration (INICO), University of Salamanca, Salamanca, Spain

    Alba Aza, Miguel Ángel Verdugo, María Begoña Orgaz, María Fernández & Antonio Manuel Amor

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  1. Alba Aza
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  2. Miguel Ángel Verdugo
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Correspondence to Alba Aza.

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Aza, A., Verdugo, M.Á., Orgaz, M.B. et al. Adaptation and validation of the self-report version of the scale for measuring quality of life in people with acquired brain injury (CAVIDACE). Qual Life Res 29, 1107–1121 (2020). https://doi.org/10.1007/s11136-019-02386-4

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