The aim was to provide an overview of the different statistical methods for validation of patient-reported outcome measures, ranging from simple statistical methods available in all software packages to advanced statistical models that require specialized software. A non-technical summary of classical test theory (CTT) and modern test theory (MTT) is provided. Specifically, confirmatory factor analysis, item response theory, and Rasch analysis is outlined. One CTT and three MTT methods were used to validate the two subscales (Symptoms and Quality of Life) from the Knee Injury and Osteoarthritis Outcome Score (KOOS). For each methodology, two analyses were considered: (i) a unidimensional analysis ignoring the pre-specified dimensionality, and (ii) a two-dimensional analysis using the pre-specified dimensionality. While CTT did not adequately address central issues regarding the validity of the KOOS subscales, the three MTT methods yielded very similar results. In conclusion, MTT methods offer analysis of all relevant properties related to the validity of patient-reported outcome measures, while this is not the case for CTT. Claims about sufficient validity based on CTT methods are inadequate and should not be trusted.
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http://dx.doi.org/10.1111/sms.13908 | DOI Listing |
Med Chem
January 2025
Department of Chemistry, Faculty of Education, Van Yüzüncü Yil University, Van, Türkiye.
Background: Glioblastoma Multiforme (GBM), a highly aggressive and prevalent brain cancer with a higher incidence in males, has limited treatment success due to drug resistance, inadequate targeting and penetration of cancer cells, and an incomplete understanding of its molecular pathways. GBM is a highly aggressive brain cancer with limited treatment options. This study investigates the anticancer potential of synthesized pyrazole compounds against GBM cells.
View Article and Find Full Text PDFOnco Targets Ther
January 2025
Affiliated Yongkang First People's Hospital and School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang, People's Republic of China.
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Front Pharmacol
January 2025
Department of Biology, Mardin Artuklu University Graduate Education Institute, Mardin, Türkiye.
Interest in metal nanoparticles synthesised using green methods is growing steadily. Metal nanoparticles can be synthesised inexpensively and effortlessly using extracts derived from different plants and their diverse components. Gold nanoparticles (Au NPs) were rapidly synthesised from Broccoli ( L.
View Article and Find Full Text PDFThe development of an effective and rapid method for healing the skin is of crucial importance. In this study, we prepared a porous scaffold made of polycaprolactone (PCL) and carbon quantum dots (CQDs), Fe, and Chitosan (Cs) as the scaffold core to cover the skin. Then evaluated antibacterial, biocompatibility, and wound healing properties as well as the expression of genes effective in wound healing.
View Article and Find Full Text PDFIran J Pharm Res
November 2024
Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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