Results 71 to 80 of about 1,514,883 (344)
Frontiers in Psychology, 2023 ObjectivesThe study aimed to identify leisure activity patterns among older adults and explore the differences in the prevalence of mild cognitive impairment (MCI) of these patterns.MethodsA total of 352 older adults aged ≥ 65 years in Shijiazhuang were ...
Yuanyuan Zhang +17 more
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Relating latent class membership to external variables: An overview
British Journal of Mathematical & Statistical Psychology, 2020 In this article we provide an overview of existing approaches for relating latent class membership to external variables of interest. We extend on the work of Nylund‐Gibson et al. (Structural Equation Modeling: A Multidisciplinary Journal, 2019, 26, 967),
Zsuzsa Bakk, J. Kuha
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Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito +14 more
wiley +1 more source
poLCA: An R Package for Polytomous Variable Latent Class Analysis
Journal of Statistical Software, 2011 poLCA is a software package for the estimation of latent class and latent class regression models for polytomous outcome variables, implemented in the R statistical computing environment. Both models can be called using a single simple command line.
Drew A. Linzer, Jeffrey B. Lewis
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Latent class models for classification [PDF]
Computational Statistics & Data Analysis, 2003 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Vermunt, J.K., Magidson, J.
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Arthritis Care &Research, EarlyView.Objective In complex diseases, it is challenging to assess a patient's disease state, trajectory, treatment exposures, and risk of multiple outcomes simultaneously, efficiently, and at the point of care. Methods We developed an interactive patient‐level data visualization and analysis tool (VAT) that automates illustration of the trajectory of a ...
Ji Soo Kim +18 more
wiley +1 more source
Regularized Latent Class Analysis for Polytomous Item Responses: An Application to SPM-LS Data
Journal of Intelligence, 2020 The last series of Raven’s standard progressive matrices (SPM-LS) test was studied with respect to its psychometric properties in a series of recent papers. In this paper, the SPM-LS dataset is analyzed with regularized latent class models (RLCMs).
Alexander Robitzsch
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How final year high school students’ depression develop during COVID-19 in China? A latent class growth modeling analysis [PDF]
, 2023 Xinyu Zhang, Guangdong Zhou
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Arthritis Care &Research, Accepted Article.Objectives There is growing interest in evaluating new strategies to delay or prevent post‐traumatic osteoarthritis (PTOA) in individuals who have sustained anterior cruciate ligament (ACL) injury. This study sought to determine characteristics of potential treatments that are acceptable to patients with ACL injury.
Kevin Kennedy +9 more
wiley +1 more source
Mixture Hidden Markov Models for Sequence Data: The seqHMM Package in R
Journal of Statistical Software, 2019 Sequence analysis is being more and more widely used for the analysis of social sequences and other multivariate categorical time series data. However, it is often complex to describe, visualize, and compare large sequence data, especially when there are
Satu Helske, Jouni Helske
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