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Impact of Measurement Variability on Study Inference in Partner Violence Prevention Trials in Low- and Middle-Income Countries

In lower- and middle-income countries (LMICs), studies of interventions to reduce intimate partner violence (IPV) are expanding, yet measurement equivalence of the IPV construct—the primary outcome in these investigations—has not been established. We assessed the measurement equivalence of physical...

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Autores principales: Clark, Cari Jo, Bergenfeld, Irina, Cheong, Yuk Fai, Kaslow, Nadine J., Yount, Kathryn M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10248284/
https://www.ncbi.nlm.nih.gov/pubmed/35575155
http://dx.doi.org/10.1177/10731911221095599
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author Clark, Cari Jo
Bergenfeld, Irina
Cheong, Yuk Fai
Kaslow, Nadine J.
Yount, Kathryn M.
author_facet Clark, Cari Jo
Bergenfeld, Irina
Cheong, Yuk Fai
Kaslow, Nadine J.
Yount, Kathryn M.
author_sort Clark, Cari Jo
collection PubMed
description In lower- and middle-income countries (LMICs), studies of interventions to reduce intimate partner violence (IPV) are expanding, yet measurement equivalence of the IPV construct—the primary outcome in these investigations—has not been established. We assessed the measurement equivalence of physical and sexual IPV item sets used in recent trials in LMICs and tested the impact of noninvariance on study inference. With data from four intervention trials (N = 3,545) completed before 2020, we used multiple-group confirmatory factor analysis to assess invariance across arms, over time, and across studies. We also calculated average treatment effects adjusting for covariate imbalance to assess concordance with published results. Most items functioned equivalently within studies at baseline and end line. Some evidence of longitudinal noninvariance was observed in at least one study arm in three studies, but did not meaningfully affect latent means or effect-size estimates. Evidence of partial invariance across studies at baseline and strict invariance over time was observed. Common measures of physical and sexual IPV were valid for measuring intervention impact in these samples. The study highlights the need for harmonized use of the tested scale, content validity assessments, and routine measurement equivalence testing to ensure valid inferences about intervention effectiveness.
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spelling pubmed-102482842023-06-09 Impact of Measurement Variability on Study Inference in Partner Violence Prevention Trials in Low- and Middle-Income Countries Clark, Cari Jo Bergenfeld, Irina Cheong, Yuk Fai Kaslow, Nadine J. Yount, Kathryn M. Assessment Articles In lower- and middle-income countries (LMICs), studies of interventions to reduce intimate partner violence (IPV) are expanding, yet measurement equivalence of the IPV construct—the primary outcome in these investigations—has not been established. We assessed the measurement equivalence of physical and sexual IPV item sets used in recent trials in LMICs and tested the impact of noninvariance on study inference. With data from four intervention trials (N = 3,545) completed before 2020, we used multiple-group confirmatory factor analysis to assess invariance across arms, over time, and across studies. We also calculated average treatment effects adjusting for covariate imbalance to assess concordance with published results. Most items functioned equivalently within studies at baseline and end line. Some evidence of longitudinal noninvariance was observed in at least one study arm in three studies, but did not meaningfully affect latent means or effect-size estimates. Evidence of partial invariance across studies at baseline and strict invariance over time was observed. Common measures of physical and sexual IPV were valid for measuring intervention impact in these samples. The study highlights the need for harmonized use of the tested scale, content validity assessments, and routine measurement equivalence testing to ensure valid inferences about intervention effectiveness. SAGE Publications 2022-05-16 2023-07 /pmc/articles/PMC10248284/ /pubmed/35575155 http://dx.doi.org/10.1177/10731911221095599 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by-nc/4.0/This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Articles
Clark, Cari Jo
Bergenfeld, Irina
Cheong, Yuk Fai
Kaslow, Nadine J.
Yount, Kathryn M.
Impact of Measurement Variability on Study Inference in Partner Violence Prevention Trials in Low- and Middle-Income Countries
title Impact of Measurement Variability on Study Inference in Partner Violence Prevention Trials in Low- and Middle-Income Countries
title_full Impact of Measurement Variability on Study Inference in Partner Violence Prevention Trials in Low- and Middle-Income Countries
title_fullStr Impact of Measurement Variability on Study Inference in Partner Violence Prevention Trials in Low- and Middle-Income Countries
title_full_unstemmed Impact of Measurement Variability on Study Inference in Partner Violence Prevention Trials in Low- and Middle-Income Countries
title_short Impact of Measurement Variability on Study Inference in Partner Violence Prevention Trials in Low- and Middle-Income Countries
title_sort impact of measurement variability on study inference in partner violence prevention trials in low- and middle-income countries
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10248284/
https://www.ncbi.nlm.nih.gov/pubmed/35575155
http://dx.doi.org/10.1177/10731911221095599
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