Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"latent class analysis (LCA)"”.
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A Study of Suicide: A Latent Class-Evidence Based Model for Screening of Suicidal Behaviors among Adolescents Living in the United States from 1991-2011
… screening process of suicidal behavior. Latent Class Analysis (LCA) is used to study patterns of suicidal behavior among adolescents and by extension, the development of evidence-based behavioral profiles of those adolescents identified as having suicidal-related behaviors. Suicidal …
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Identifying patterns of weight-related health behaviors among US adolescents, and associated risk of obesity
… was to develop and examine a comprehensive latent class analysis (LCA) model examining the prevalence of combined associations of physical activities sedentary behaviors, and eating behaviors with obesity among female and male US adolescents (n= 12,031). Four classes and five classes were …
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Student Learning Heterogeneity in School Mathematics
… grades 3, 6, and 9 dataset were analyzed using latent trait analysis (LTM) and latent class analysis (LCA). The tests were constructed to distinguish four achievement levels per grade and, either five curriculum strands (grades 3 and 6), three strands (grade 9 applied) or four strands (grade 9 …
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A latent class analysis of professional development opportunities for special education teachers in rural school districts: Implications for preventing attrition
… teachers working in rural communities. A latent class analysis (LCA) was used to identify a teacher typology concerning early career professional development, resulting in a two-class model, 'Greater Access to Professional Development' (Latent Class 1) and 'Less Access to Professional …
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A Person-Centered Approach to Understanding Women's Decision to Fake Orgasm
… analyses (e.g., exploratory factor analysis, correlation, and regression). This study used a person-centered approach (i.e., latent class analysis; LCA) to explore differences in women's motives across individuals, using scores from the Faking Orgasm Scale. A 5-class model was …
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The Characteristics of Depressive Subtypes among Adolescents and Their Role in the Relationship between Weight and Depression
… that are differentially associated with weight, Latent Class Analysis (LCA) was conducted and resulting classes were tested for associations with weight. Six latent classes were identified. Four were uniquely associated with somatic symptoms including hyper- and hypophagia, suggesting that …
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An Investigation of Episodic Memory Performance in Relation to Inflammation in Children with Sickle Cell Disease
… participated in routine clinical blood draws. Latent class analysis (LCA) was used to empirically define SCD groups based on measures of specific visual memory processes, and results revealed two distinct visual memory groups, characterized by (1) visual memory deficits, specifically in delayed …
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Analyzing the Internal and External Dimensions of Hope in College Students Attending a Predominantly White Institution
… study that utilizes Confirmatory Factor Analysis (CFA) to validate the Locus of Hope scale. The second empirical paper utilized Latent Class Analysis (LCA) to analyze the relationship between student background characteristics and internal hope profiles. The third and final empirical …
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Latent Class Analysis of Health Risk Behaviors Among Survivors of Childhood Adversities
… the Midwest using online surveys. Results from a Latent Class Analysis (LCA) indicated that a three-class model was the best fit. These classes include a “Poor Diet, Inactivity, and Risky Behavior” class, “Poor Diet and Inactivity” class, and an “Inactivity” class. Once classes were created, a …
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EXAMINING THE CHARACTERISTICS THAT SUPPORT NURSES’ INNOVATIVE BEHAVIORS
… providing high-quality care. Identifying and classifying the individual and organizational characteristics that contribute to nursing innovativeness is essential.Methods: This is a 3-paper dissertation where the results of Paper 1 informed the research process for Papers 2 and 3. Paper 1 was …
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Statistical Learning Methods for Challenges arised from Self-Reported Data
… challenges posed by self-reported (SR) data. Latent class analysis (LCA) is explored in the early stages of this work to cluster patients, and the clusters are compared to find features that are significantly different among clusters. While LCA is effective for categorical variables, it fails …
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Parent-Adolescent Discrepancies in Ratings of Youth Victimization: Associations with Psychological Adjustment
… discrepancies on ratings of victimization. Latent class analysis (LCA) was employed to identify groups of dyads distinguished by patterns of parent and youth report of victimization, uncovering heterogeneity based on patterns of parent-youth ratings of victimization. Analyses examined how …
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Child Abuse and Revictimization: Improving Models of Revictimization Risk
… CA sequelae using person-centered analyses (latent class analysis, LCA). The CA variables tested have been identified in the empirical literature, but not previously studied simultaneously. The third and final aim was to develop a new and interactive risk recognition task that was also able …
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Identificação do efeito causal no modelo de mediação com variáveis latentes
Causal mediation analysis, which is based on potential responses (counterfactuals), is a commonly used method for decomposing the causal effect of an intervention on an outcome in several applications. This method is widely used in various areas of knowledge, particularly in epidemiology and social …
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Primary Mental Health and Substance Use Service Provision by Family Physicians in British Columbia: Exploring Age, Period, and Cohort Trends from 1996-2017
… studies. In the first study, we use graphical analysis, analysis of variance (ANOVA), and Chi-Square tests to assess differences in service provision stratified by FP age, graduating cohort, and time period. In the second study, we apply three age-period-cohort (APC) models to compare the …
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Latent Class Analysis of Malingering Classifications Using Performance and Symptom Validity Measures in a Civil Forensic Setting
… archival sample of civil forensic litigants. A latent clustering approach was used to create profiles comprised of the response patterns from validity measures of different domains including three performance validity tests (PVT), five symptom validity scales (SVT), and an embedded validity …
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The Role of Identifications in Higher Education Decisions
… datasets (Next Steps and NELS:88) and latent class analysis (LCA) to identify different classes of ‘qualified’ students who self-selected not to pursue HE: Work-Oriented Voluntary Leavers (WOVLs), HE Deniers, the ‘Uncertain group’ and the ‘Multiple Obstacles group’ in Next Steps; WOVLs, …
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Re-examining typologies of sexually violent offenders
The current study assessed a classification of sexual offenders from combinations of crime scene evidence and case data. It sought to contribute a unique perspective to the sexual offender typology literature by utilizing data obtained from the Violent Criminal Apprehension Program (ViCAP) …
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Latent class modelling of respiratory outcomes in a South African birth cohort
… function measurements through the derivation of latent phenotype classes and (2) the impact of early-life lower respiratory tract infections (LRTIs) and other predictors on wheezing and lung function. Methods: Data from the Drakenstein Child Health Study (DCHS) was used to critically evaluate …
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Socioeconomic status and tobacco use behavior in adolescence.
… with poverty, with those in lower socioeconomic classes using tobacco at higher rates. The association between socioeconomoic status (SES) and tobacco use for youth, however, is much less clear. Understanding the role of SES in initiation and progression of tobacco use among adolescents can …
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