Structural equation models (SEMs) have been widely applied to examine interrelationships among latent and observed variables in social and psychological research. Motivated by the fact that correlated discrete variables are frequently encountered in practical applications, a non-linear SEM that accommodates covariates, and mixed continuous, ordered, and unordered categorical variables is proposed. Maximum likelihood methods for estimation and model comparison are discussed. One real-life data set about cardiovascular disease is used to illustrate the methodologies.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1348/000711008X292343 | DOI Listing |
Alzheimers Dement
December 2024
University of California, Irvine, Irvine, CA, USA.
Background: Amid recent approvals, early Alzheimer's disease (AD) remains an active area of treatment development, but research on the utility of recruitment incentives in early AD trials remains limited. We examined how trial design features impact enrollment decisions among Mild Cognitive Impairment (MCI) patients and their family members.
Method: We performed a conjoint analysis experiment to compare early AD patients' preferences for trial features.
R Soc Open Sci
January 2025
Department of Psychology, Utrecht University, Utrecht, The Netherlands.
Decades of research have shown that adversity tends to be associated with lower working memory (WM) performance. This literature has mainly focused on impairments in the capacity to hold information available in WM for further processing. However, some recent adaptation-based studies suggest that certain types of adversity can leave intact, or even enhance, the ability to rapidly update information in WM.
View Article and Find Full Text PDFPhys Chem Chem Phys
January 2025
Department of Chemistry and Biochemistry, Northern Illinois University, 1425 W. Lincoln Highway, DeKalb, IL, USA.
Room temperature ionic liquids (RTILs) are interesting due to their myriad uses in fields such as catalysis and electrochemistry. Their properties are intimately related to their structures, yet structural understanding is difficult to achieve. This work presents a derivation of an approximate expression for the radial distribution function, ().
View Article and Find Full Text PDFHealth Info Libr J
January 2025
Department of Management Information Systems, King Abdulaziz University, Jeddah, Saudi Arabia.
Background: Much government response to improving vaccination uptake during the COVID-19 pandemic has focused on the problems of misinformation and disinformation. There may, however, be other signals within online health information that influence uptake of vaccination.
Objective: This study identified the influence of various health information signals within online information communities on the intention of receiving the vaccine.
Sci Rep
January 2025
Xi'an Botanical Garden of Shaanxi Province, Institute of Botany of Shaanxi Province, Xi'an, 710061, Shaanxi, China.
Bacteria, fungi, archaea, and viruses are reflective organisms that indicate soil health. Investigating the impact of crude oil pollution on the community structure and interactions among bacteria, fungi, archaea, and viruses in Calamagrostis epigejos soil can provide theoretical support for remediating crude oil pollution in Calamagrostis epigejos ecosystems. In this study, Calamagrostis epigejos was selected as the research subject and subjected to different levels of crude oil addition (0 kg/hm, 10 kg/hm, 40 kg/hm).
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!