Search for dissertations about: "randomization test"

Showing result 1 - 5 of 15 swedish dissertations containing the words randomization test.

2. 1. On Sequential Treatment Allocations in Clinical Trials

   Author : Carl-Fredrik Burman; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; treatment assignment; clinical trial; biased coin designs; balance of prognostic factors; sequential design; randomization test; expected p-value; deficiency; efficiency; efficiency;

   Abstract : This dissertation treats baseline-dependent sequential designs of two-treatment parallel-group clinical trials. The treatment assignments are chosen in order to minimize the variance, in a linear model, of the treatment effect. This is done for each new allocation using a generalized biased coin design, or a non-randomized minimization' method. READ MORE

4. 2. Depression in teenagers and young adults : foundational studies of the new treatment paradigm TARA: Training for Awareness, Resilience, and Action

   Author : Erik Ekbäck; Eva Henje Blom; Ida Blomqvist; Jenny Molin; Inga Dennhag; Thorbjörn Lundberg; Elizabeth McCauley; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Depression; adolescents; young adults; medical students; mental health; anxiety; psychological stress; qualitative research; randomization; yoga; mindfulness; psychotherapy; antidepressant drugs; biomarkers; clinical trial; feasibility studies; online intervention; reliability; validity; confirmatory factor analysis; measurement invariance; barn- och ungdomspsykiatri; Child and Youth Psychiatry;

   Abstract : Introduction: Depression in adolescents and young adults is an increasing global health concern and available treatments are not convincingly effective. It is therefore important to develop and test novel treatments to improve treatment outcomes. READ MORE

5. 3. Essays on the Evaluation of Public Policies

   Author : Michihito Ando; Matz Dahlberg; Che-Yuan Liang; David Neumark; Uppsala universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Local income growth; Local employment; Nuclear power facilities; Synthetic control method; Quantitative case study; Regression kink design; Endogenous treatment; Intergovernmental grants; Flypaper effect; Treatment effect heterogeneity; Instrumental variable; Oral health; Dentures; Price elasticity; Regression discontinuity design; Cost sharing; Randomization test; Economics; Nationalekonomi;

   Abstract : This thesis consists of four self-contained papers.Essay 1: This paper uses the synthetic control (SC) method to examine how the establishment of Nuclear Power Facilities (NPFs) in Japan in the 1970s and 1980s has affected local per capita income levels in the municipalities in which they were located (NPF municipalities). READ MORE

6. 4. New Constructions for Competitive and Minimal-Adaptive Group Testing

   Author : Muhammad Azam Sheikh; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; strict group testing; disjoint pools; randomization; competitive group testing; minimal-adaptive group testing; exact bounds; competitive ratio;

   Abstract : Group testing (GT) was originally proposed during the World War II in an attempt to minimize the \emph{cost} and \emph{waiting time} in performing identical blood tests of the soldiers for a low-prevalence disease. Formally, the GT problem asks to find $d\ll n$ \emph{defective} elements out of $n$ elements by querying subsets (pools) for the presence of defectives. READ MORE

7. 5. On Confidence Intervals and Two-Sided Hypothesis Testing

   Author : Måns Thulin; Silvelyn Zwanzig; Burkhardt Seifert; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematical Statistics; Matematisk statistik;

   Abstract : This thesis consists of a summary and six papers, dealing with confidence intervals and two-sided tests of point-null hypotheses.In Paper I, we study Bayesian point-null hypothesis tests based on credible sets. A decision-theoretic justification for tests based on central credible intervals is presented. READ MORE