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Family vulnerability scale: Evidence of content and internal structure validity

INTRODUCTION: Territory view based on families’ vulnerability strata allows identifying different health needs that can guide healthcare at primary care scope. Despite the availability of tools designed to measure family vulnerability, there is still a need for substantial validity evidence, which l...

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Autores principales: de Souza, Evelyn Lima, Eshriqui, Ilana, Rebustini, Flávio, Masuda, Eliana Tiemi, de Paiva Neto, Francisco Timbó, Lima, Ricardo Macedo, Bonfim, Daiana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10599550/
https://www.ncbi.nlm.nih.gov/pubmed/37878548
http://dx.doi.org/10.1371/journal.pone.0280857
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author de Souza, Evelyn Lima
Eshriqui, Ilana
Rebustini, Flávio
Masuda, Eliana Tiemi
de Paiva Neto, Francisco Timbó
Lima, Ricardo Macedo
Bonfim, Daiana
author_facet de Souza, Evelyn Lima
Eshriqui, Ilana
Rebustini, Flávio
Masuda, Eliana Tiemi
de Paiva Neto, Francisco Timbó
Lima, Ricardo Macedo
Bonfim, Daiana
author_sort de Souza, Evelyn Lima
collection PubMed
description INTRODUCTION: Territory view based on families’ vulnerability strata allows identifying different health needs that can guide healthcare at primary care scope. Despite the availability of tools designed to measure family vulnerability, there is still a need for substantial validity evidence, which limits the use of these tools in a country showing multiple socioeconomic and cultural realities, such as Brazil. The primary objective of this study is to develop and gather evidence on the validity of the Family Vulnerability Scale for Brazil, commonly referred to as EVFAM-BR (in Portuguese). METHODS: Items were generated through exploratory qualitative study carried out by 123 health care professionals. The data collected supported the creation of 92 initial items, which were then evaluated by a panel of multi-regional and multi-disciplinary experts (n = 73) to calculate the Content Validity Ratio (CVR). This evaluation process resulted in a refined version of the scale, consisting of 38 items. Next, the scale was applied to 1,255 individuals to test the internal-structure validity by using the Exploratory Factor Analysis (EFA). Dimensionality was evaluated using Robust Parallel Analysis, and the model underwent cross-validation to determine the final version of EVFAM-BR. RESULTS: This final version consists of 14 items that are categorized into four dimensions, accounting for an explained variance of 79.02%. All indicators were within adequate and satisfactory limits, without any cross-loading or Heywood Case issues. Reliability indices also reached adequate levels (α = 0.71; ω = 0.70; glb = 0.83 and ORION ranging from 0.80 to 0.93, between domains). The instrument scores underwent a normalization process, revealing three distinct vulnerability strata: low (0 to 4), moderate (5 to 6), and high (7 to 14). CONCLUSION: The scale exhibited satisfactory validity evidence, demonstrating consistency, reliability, and robustness. It resulted in a concise instrument that effectively measures and distinguishes levels of family vulnerability within the primary care setting in Brazil.
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spelling pubmed-105995502023-10-26 Family vulnerability scale: Evidence of content and internal structure validity de Souza, Evelyn Lima Eshriqui, Ilana Rebustini, Flávio Masuda, Eliana Tiemi de Paiva Neto, Francisco Timbó Lima, Ricardo Macedo Bonfim, Daiana PLoS One Research Article INTRODUCTION: Territory view based on families’ vulnerability strata allows identifying different health needs that can guide healthcare at primary care scope. Despite the availability of tools designed to measure family vulnerability, there is still a need for substantial validity evidence, which limits the use of these tools in a country showing multiple socioeconomic and cultural realities, such as Brazil. The primary objective of this study is to develop and gather evidence on the validity of the Family Vulnerability Scale for Brazil, commonly referred to as EVFAM-BR (in Portuguese). METHODS: Items were generated through exploratory qualitative study carried out by 123 health care professionals. The data collected supported the creation of 92 initial items, which were then evaluated by a panel of multi-regional and multi-disciplinary experts (n = 73) to calculate the Content Validity Ratio (CVR). This evaluation process resulted in a refined version of the scale, consisting of 38 items. Next, the scale was applied to 1,255 individuals to test the internal-structure validity by using the Exploratory Factor Analysis (EFA). Dimensionality was evaluated using Robust Parallel Analysis, and the model underwent cross-validation to determine the final version of EVFAM-BR. RESULTS: This final version consists of 14 items that are categorized into four dimensions, accounting for an explained variance of 79.02%. All indicators were within adequate and satisfactory limits, without any cross-loading or Heywood Case issues. Reliability indices also reached adequate levels (α = 0.71; ω = 0.70; glb = 0.83 and ORION ranging from 0.80 to 0.93, between domains). The instrument scores underwent a normalization process, revealing three distinct vulnerability strata: low (0 to 4), moderate (5 to 6), and high (7 to 14). CONCLUSION: The scale exhibited satisfactory validity evidence, demonstrating consistency, reliability, and robustness. It resulted in a concise instrument that effectively measures and distinguishes levels of family vulnerability within the primary care setting in Brazil. Public Library of Science 2023-10-25 /pmc/articles/PMC10599550/ /pubmed/37878548 http://dx.doi.org/10.1371/journal.pone.0280857 Text en © 2023 Souza et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
de Souza, Evelyn Lima
Eshriqui, Ilana
Rebustini, Flávio
Masuda, Eliana Tiemi
de Paiva Neto, Francisco Timbó
Lima, Ricardo Macedo
Bonfim, Daiana
Family vulnerability scale: Evidence of content and internal structure validity
title Family vulnerability scale: Evidence of content and internal structure validity
title_full Family vulnerability scale: Evidence of content and internal structure validity
title_fullStr Family vulnerability scale: Evidence of content and internal structure validity
title_full_unstemmed Family vulnerability scale: Evidence of content and internal structure validity
title_short Family vulnerability scale: Evidence of content and internal structure validity
title_sort family vulnerability scale: evidence of content and internal structure validity
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10599550/
https://www.ncbi.nlm.nih.gov/pubmed/37878548
http://dx.doi.org/10.1371/journal.pone.0280857
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