Sökning: "proxy variables"
Visar resultat 1 - 5 av 45 avhandlingar innehållade orden proxy variables.
1. Methods for improving covariate balance in observational studies
Sammanfattning : 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. LÄS MER
2. Intergenerational Persistence and Ethnic Disparities in Education
Sammanfattning : This thesis consists of four self-contained essays in the sociology of educational stratification. Study I draws on newly collected survey data to assess the biases that arise in estimating socioeconomic differences in achievement when relying on parent and student reported data on social background. LÄS MER
3. Coastal signals of environmental changes: foraminifera as benthic monitors
Sammanfattning : Climate changes, tightly linked to anthropogenic activities, are significantly altering environments and ecosystems globally, such as by increasing marine and coastal deoxygenation or occurrences of extreme weather events. The significance of paleoenvironmental and -climate reconstructions, as well as monitoring of current conditions, for unravelling baseline natural variation, today’s changes and potential future impacts, has been recognised by the Intergovernmental Panel on Climate Change (IPCC) reports. LÄS MER
4. Anterior Cruciate Ligament injury, Patient Variables, Outcomes and Knee Osteoarthritis
Sammanfattning : The ruptured anterior cruciate ligament (ACL) leads to immediate symptoms that severely affect the individual and receives great attention among the scientific community, yet there is still no consensus on the optional form of treatment. An ACL injury is also a well known high risk factor for the development of knee osteoarthritis (OA) some decades later. LÄS MER
5. Essays on Conflict, Institutions, and Ethnic Diversity
Sammanfattning : The thesis consists of five self-contained papers. Paper 1: Social Capital vs Institutions in the Growth Process Is social capital a substitute or a complement to formal institutions for achieving economic growth? Research on the impacts of social capital and formal institutions on economic development have so far mainly emerged as two distinct …elds. LÄS MER