Essays about: "nonresponse bias"
Found 3 essays containing the words nonresponse bias.
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1. Investigating Industry Bias in Swedish Polling from 2010 to 2022
University essay from Uppsala universitet/Statistiska institutionenAbstract : Industry bias is the bias associated with polling estimates, and that is caused by systematic errors. We aim to test for its presence in Swedish political polling from 2010 to 2022 and simulate industry bias as a consequence of nonresponse bias. READ MORE
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2. Auxiliary variables a weight against nonresponse bias : A simulation study
University essay from Stockholms universitet/Statistiska institutionenAbstract : Today’s surveys face a growing problem with increasing nonresponse. The increase in nonresponse rate causes a need for better and more effective ways to reduce the nonresponse bias. There are three major scientific orientation of today’s research dealing with nonresponse. READ MORE
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3. Missing data in health economic evaluations: handling the associated uncertainty
University essay from Handelshögskolan i Stockholm/Institutionen för nationalekonomiAbstract : The purpose of this thesis is to explore the problems associated with missing data in studies included in health economic evaluations in order to promote validity and improve the base for decision making. The literature study focus on adjustment methods from a realized dataset with individual data, but also covers methods to prepare and prevent the problem. READ MORE