Sökning: "polychoric correlation"
Hittade 5 avhandlingar innehållade orden polychoric correlation.
1. Studies of the polychoric correlation and other correlation measures for ordinal variables
Sammanfattning : .... LÄS MER
2. Some Aspects on Confirmatory Factor Analysis of Ordinal Variables and Generating Non-normal Data
Sammanfattning : This thesis, which consists of five papers, is concerned with various aspects of confirmatory factor analysis (CFA) of ordinal variables and the generation of non-normal data. The first paper studies the performances of different estimation methods used in CFA when ordinal data are encountered. LÄS MER
3. On predictions, measurement, and causal inference : Essays on statistical correlations and statistical applications in labor market economics and criminology
Sammanfattning : This thesis consists of five papers covering a broad range of statistical themes, from prediction via correlation measures to causal inference.Paper I uses a nationally representative survey of separated Swedish women to examine whether men who strive to control their partners during their relationships are more likely to stalk or assault their ex-partners after separation. LÄS MER
4. Contributions to the Theory of Measures of Association for Ordinal Variables
Sammanfattning : In this thesis, we consider measures of association for ordinal variables from a theoretical perspective. In particular, we study the phi-coefficient, the tetrachoric correlation coefficient and the polychoric correlation coefficient. LÄS MER
5. Essays on Estimation Methods for Factor Models and Structural Equation Models
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