Sökning: "structural equation models"

Visar resultat 1 - 5 av 79 avhandlingar innehållade orden structural equation models.

  1. 1. Non-linear structural equation models : simulation studies of the Kenny-Judd model

    Författare :Fan Yang Jonsson; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Statistics; Statistik;

    Sammanfattning : .... LÄS MER

  2. 2. On the relation between psychosocial work environment and musculoskeletal symptoms : a structural equation modeling approach

    Författare :Pernilla Larsman; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :Psychosocial work environment; felt stress; perceived fatigue; musculoskeletal symptoms; process models; mediation; moderation; structural;

    Sammanfattning : The aim of the present thesis was to investigate the relation between aspects of the psychosocial work environment and musculoskeletal symptoms including the testing of process models of the potential mediating mechanisms of felt stress and perceived fatigue, and the potential moderating mechanism of physical workload. This thesis is based on four empirical studies. LÄS MER

  3. 3. Essays on Estimation Methods for Factor Models and Structural Equation Models

    Författare :Shaobo Jin; Fan Yang-Wallentin; Rolf Larsson; Li Cai; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; shrinkage; factor rotation; penalized maximum likelihood; pseudo-maximum likelihood; multi-group analysis; ordinal data; robustness; Statistics; Statistik;

    Sammanfattning : This thesis which consists of four papers is concerned with estimation methods in factor analysis and structural equation models. New estimation methods are proposed and investigated.In paper I an approximation of the penalized maximum likelihood (ML) is introduced to fit an exploratory factor analysis model. LÄS MER

  4. 4. Composite Likelihood Estimation for Latent Variable Models with Ordinal and Continuous, or Ranking Variables

    Författare :Myrsini Katsikatsou; Fan Yang-Wallentin; Irini Moustaki; Karl Gustav Jöreskog; Ruggero Bellio; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; latent variable models; factor analysis; structural equation models; Thurstonian model; item response theory; composite likelihood estimation; pairwise likelihood estimation; maximum likelihood; weighted least squares; ordinal variables; ranking variables; lavaan; Statistics; Statistik;

    Sammanfattning : The estimation of latent variable models with ordinal and continuous, or ranking variables is the research focus of this thesis. The existing estimation methods are discussed and a composite likelihood approach is developed. LÄS MER

  5. 5. Quality Management in Hospital Departments : Empirical Studies of Organisational Models

    Författare :Stefan Kunkel; Ragnar Westerling; Urban Rosenqvist; Lars Borgquist; Uppsala universitet; []
    Nyckelord :Social medicine; Quality Management; Organisational Models; Hospital Departments; Socialmedicin;

    Sammanfattning : The general aim of this thesis was to empirically explore the organisational characteristics of quality systems of hospital departments, to develop and empirically test models for the organisation and implementation of quality systems, and to discuss the clinical implications of the findings. Data were collected from hospital departments through interviews (n=19) and a nation-wide survey (n=386). LÄS MER