Myriam Blanchin
- methodS in Patients-centered outcomes and HEalth ResEarch (SPHERE)
Présentation
My research interests include the analysis of repeated measures and longitudinal data, statistical methods for patient-reported outcome measures (PROMs), and measurement invariance (differential item functioning and response shift). As a research engineer in biostatistics, my research aims to develop and validate statistical methods to address the challenges of analyzing longitudinal PRO data through simulation studies. My works are applied in different chronic conditions such as cancers, difficult-to-treat depression and end stage renal disease. The modules for PRO analysis developed with my colleagues are available on ssc for Stata modules and on [ PRO-online website] (https://pro-online.net/) .
Domaines de recherche
Publications
Publications
Group measurement invariance assessment with item-level latent variable models: A comparative simulation study of two methods46th Annual Conference of the International Society for Clinical Biostatistics, ISCB, Aug 2025, Bâle (Suisse), Switzerland |
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CO7.5 - Evolutions des symptômes anxieux et dépressifs chez les personnels de santé des centres de lutte contre le cancer pendant la pandémie de COVID-19EPICLIN 2024, 18ème Conférence francophone d'Épidémiologie Clinique, 31èmes journées des statisticiens des centres de lutte contre le cancer, May 2024, Dijon, France. pp.202424, ⟨10.1016/j.jeph.2024.202424⟩ |
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Difficulté d’interprétation des questionnaires de qualité de Vie, effet « response-shift »15èmes journées du Groupe Francophone des Myélodysplasies, Jun 2024, Angers, France |
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Le changement de perception en psychométrie« Quels changements après un diagnostic de cancer ? », Journée du Réseau Sciences Humaines et Sociales du Cancéropôle Grand Ouest, Nov 2023, Nantes, France |
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Modélisation de données de type « Patient-Reported Outcomes » longitudinales à l'aide d'un modèle de la famille de Rasch en temps continu et prise en compte de la non-invariance de la mesureEPICLIN 2023, 17e Conférence francophone d’Épidémiologie Clinique, 30e Journées des statisticiens des Centres de Lutte contre le Cancer, May 2023, Nancy (France), France. pp.101603, ⟨10.1016/j.respe.2023.101603⟩ |
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Continuous-time IRT Models: Modelling a Latent Process Trajectory with Item-level Measurement Models29th Annual Conference of the International Society for Quality of Life Research, Psychometric and Response shift Special Interest Groups Symposium; ISOQOL, Oct 2022, Prague, Czech Republic. pp.9-169, ⟨10.1007/s11136-022-03257-1⟩ |
Assessment of the link between response shift and the change over time in the number of Guttman errors via a simulation study27th Annual Conference of the International Society for Quality of Life Research, Oct 2020, Virtual, Czech Republic |
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Les erreurs de Guttman pour détecter le « Response Shift » au niveau individuel14e Conférence Francophone d'Épidémiologie Clinique (EPICLIN), Septembre 2020, Sep 2020, Virtuel, France |
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Comparaison de trois méthodes d'analyse des variables latentes longitudinales41èmes Journées de Statistique, SFdS, Bordeaux, 2009, Bordeaux, France, France |
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A simultaneous assessment of multiple sources of Differential Item Functioning and Response Shift in health-related quality of life of cancer survivors31st Annual Conference of the International Society for Quality of Life Research, Oct 2024, Cologne, Germany. Quality of life Research, 33 (S1), pp.133, 2024 |
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Response shift analysis at the item level among multiple groups using Rasch models: a simulation study31st Annual Conference of the International Society for Quality of Life Research, Oct 2024, Cologne, Germany. Quality of Life Research, 33 (S1), pp.150, 2024 |
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HADS-Anxiety: item-level investigation of the lack of longitudinal measurement invariance in melanoma and breast cancer patientsThe 10th European Congress of Methodology (EAM2023), 2023, Ghent, Belgium |
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Longitudinal measurement invariance assessment at the item level with Rasch family models: performances of the ROSALI algorithm for response shift detection10th European Congress of Methodology [EAM 2023], Jul 2023, Ghent, Belgium. |
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HADS-Anxiety: item-level investigation of the lack of longitudinal measurement invariance30th Annual Conference of the International Society for Quality of Life Research, 2023, Calgary, Canada. Quality of Life Research, 32 (S2), pp.S163, 2023, ⟨10.1007/s11136-023-03530-x⟩ |
Version française du « Post-traumatic growth inventory »16e Conférence Francophone d'Épidémiologie Clinique (EPICLIN), May 2022, Paris, France |
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Assessment of the heterogeneity of DIF using covariates with Rasch family models28th Annual Conference of the International Society for Quality of Life Research, Oct 2021, Virtual, Canada |
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Validation of the French version of the Post-traumatic Growth Inventory in melanoma and breast cancer patients28th Annual Conference of the International Society for Quality of Life Research, Oct 2021, Virtual conference, Canada |
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Validation of a Guttman’s errors based method to detect Response Shift (GERS) at an individual level26th Annual Conference of the International Society for Quality of Life Research, Oct 2019, San Diego, United States |
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Estimating longitudinal Partial Credit Models and accounting for lack of measurement invariance using Generalized Structural Equation Modeling in Stata.2024 |
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The Stata module -pcm-for Rasch Measurement Theory -An application to assess Health Literacy determinants for residents of homeless shelters2024 |
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Continuous-time modeling of self-reported outcome data: a dynamic Item Response Theory model2021 |
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Comparaison des approches CTT et IRT pour l'analyse des effets temps et groupe de données longitudinales de type Patient-Reported Outcomes et impact du dropoutSanté publique et épidémiologie. Nantes Université, 2011. Français. ⟨NNT : ⟩ |