Validity and Reliability of the Digital Functioning Assessment Short Test (D-FAST) in the Brazilian Sample
Silvia Dubou Serafim1, 2, Jeferson Ferraz Goularte1, 2, Marco Antonio Caldieraro1, 2, Flavia Moreira Lima3, Giovana Dalpiaz1, 2, Francisco Diego Rabelo-da-Ponte1, 2, Carla Torrent4, Brisa Solé4, Eduard Vieta4, Adriane Ribeiro Rosa1, 2, 5, *
Identifiers and Pagination:Year: 2022
E-location ID: e174501792210121
Publisher ID: e174501792210121
Article History:Received Date: 11/4/2022
Revision Received Date: 2/9/2022
Acceptance Date: 7/9/2022
Electronic publication date: 25/11/2022
Collection year: 2022
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The COVID-19 pandemic has caused major disruptions in all aspects of daily functioning, from school and work to interactions with friends and family. The Functioning Assessment Short Test (FAST) is an interviewer-administered scale validated in the psychiatric sample with no previous study assessing its validity and reliability in a digital format. Thus, we aimed to analyse the psychometric properties of the digital version of the FAST and understand the implications of COVID-19 and restrictive measures on functioning.
Data were collected using an online survey. The psychometric properties of the digital FAST were assessed by confirmatory factor analysis, Cronbach’s alpha, and discriminant functional by cluster analysis in a community sample.
Out of the total sample, 2,543 (84.1%) were female, and the mean (SD) age was 34.28 (12.46) years. The digital FAST retained the six factors structure observed in the original version, with Cronbach’s alpha above 0.9. In addition, we showed evidence of discriminant validity by differentiating three clusters of psychosocial functioning. Clinical and demographic differences between groups explained, in part, the heterogeneity of functioning, thus providing support for the construct validity of the instrument.
The digital FAST is a simple and easy-to-understand instrument that provides a multidimensional assessment of functioning without the need for an interviewer. Furthermore, our findings may help to better understand the psychosocial implications of the pandemic and the importance of planning specific interventions to rehabilitee the affected group.