نتایج جستجو برای: wave nonresponse
تعداد نتایج: 219404 فیلتر نتایج به سال:
In the three Italian centres involved in the European Community Respiratory Health Survey (ECRHS), prevalence of asthma-like symptoms was assessed through a mailback questionnaire. Since the nonresponse rate was not negligible, ranging 10-18%, we investigated whether nonresponse bias affected the results and, if so, whether the bias could be eliminated from the final estimates of prevalence. A ...
Nonresponse is a major impediment to valid inference in sample surveys. In the nonresponse scenario, driver of successful estimation efficient use available auxiliary information. As electronic devices provide considerable data storage capacities, at stage it natural for survey statisticians face large datasets variables. It unwise all as doing so may lead poor estimators, especially if some va...
I evaluate and compare the bias due to nonresponse and misclassification in the sample gross labour flow estimates from the Norwegian Labour Force Survey (LFS). These help also to explain the level and net change estimates from the same survey. The main conclusions are the following: (a) the overall labour market stability, i.e., the proportion of people without change in status, should be boos...
In this article, we describe kmr, a command to estimate microcompliance function using groups’ nonresponse rates (Korinek, Mistiaen, and Ravallion, 2007, Journal of Econometrics 136: 213–235), which can be used correct survey weights for unit nonresponse. We illustrate the use kmr with an empirical example current population state-level rates.
BACKGROUND Skin and soft tissue infections are common reasons for medical care. Use of broad-spectrum therapy and costs have increased. Assessment of early treatment response has been given a central role both in clinical trials and everyday practice. However, there is a paucity of data on the dynamics of response, causes of early nonresponse, and how early nonresponse affects resource use and ...
Survey statisticians have been dealing with the issues of nonresponse in sample surveys for many years. Due to complex nature mechanism, so far it has not easy find a general solution this problem. In paper, several aspects topic will be elaborated on: survey unit bias examined alternatively by taking response amounts which are fixed initially and also as random variables. An overview component...
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