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Found 3 essays matching the above criteria.

1. 1. Investigating Industry Bias in Swedish Polling from 2010 to 2022

   University essay from Uppsala universitet/Statistiska institutionen

   Author : Max Johansson; Michael Debebe; [2023]
   Keywords : Industry Bias; Bias; Polling; Simulation; Swedish Parliamentary Election;

   Abstract : 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

3. 2. Auxiliary variables a weight against nonresponse bias : A simulation study

   University essay from Stockholms universitet/Statistiska institutionen

   Author : Mattias Lindberg; Peter Guban; [2014]
   Keywords : Nonresponse; MAR; MCAR; MNAR; nonresponse bias; estimator; indicator; auxiliary variable ;

   Abstract : 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

4. 3. Missing data in health economic evaluations: handling the associated uncertainty

   University essay from Handelshögskolan i Stockholm/Institutionen för nationalekonomi

   Author : Nicklas Pettersson; [2006]
   Keywords : Economic evaluation; Missing data;

   Abstract : 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