Search for dissertations about: "covariates the third variables"
Showing result 1 - 5 of 7 swedish dissertations containing the words covariates the third variables.
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1. Bilingual education cognitive development and school achievement : a study of the bilingual programs for Tibetan children
Abstract : This study examines the effects of two models of school bilingual programs on Tibetan children's cognitive development and school achievement.Based on the findings of empirical studies, Cummins' threshold theory was critically evaluated. READ MORE
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2. Methods for improving covariate balance in observational studies
Abstract : This thesis contributes to the field of causal inference, where the main interest is to estimate the effect of a treatment on some outcome. At its core, causal inference is an exercise in controlling for imbalance (differences) in covariate distributions between the treated and the controls, as such imbalances otherwise can bias estimates of causal effects. READ MORE
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3. Income Generation in the African and Coloured Population: Three essays on the origins of household incomes in South Africa
Abstract : The dissertation comprises three empirical analyses focusing on the origins of South African households? income sources. The income sources are categorized to reflect the households? varying extent of economic core sector integration. READ MORE
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4. Bayesian Modeling of Conditional Densities
Abstract : This thesis develops models and associated Bayesian inference methods for flexible univariate and multivariate conditional density estimation. The models are flexible in the sense that they can capture widely differing shapes of the data. The estimation methods are specifically designed to achieve flexibility while still avoiding overfitting. READ MORE
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5. Self-rated Health with special reference to Prevalence, Determinants and Consequences
Abstract : Objectives: The overall aim was to investigate determinants and consequences of global non-comparative self-ratings of health (SRH). Concerning determinants, the aim was more specifically to investigate the association between age, year of investigation, stress-theory based psychobiological variables, and SRH. READ MORE