Results 11 to 20 of about 4,634,663 (237)
Discrete choice non-response [PDF]
Working Paper Series, 2003 Missing values are endemic in the data sets available to econometricians. This paper suggests a semiparametrically efficient likelihood-based approach to deal with general non-ignorable missing data problems for discrete choice models. Our concern is when the dependent variable and/or covariates are unobserved for some sampling units.
Esmeralda A. Ramalho, Richard J. Smith
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AIMS Mathematics, 2022 This paper addresses the issue of estimating the population mean for non-response using simple random sampling. A new family of estimators is proposed for estimating the population mean with auxiliary information on the sample mean and the rank of the ...
Sohaib Ahmad +5 more
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AIMS Mathematics, 2022 Several situations arise where decision-making is required for some characteristics of an asymmetrical population for example estimation of the weekly number of server breakdowns at a company.
Mehreen Fatima +3 more
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Survey Non-Response and Unemployment Duration [PDF]
SSRN Electronic Journal, 2004 Social surveys are often used to estimate unemployment duration distributions. Survey non-response may then cause a bias. We study this by using a data set that combines survey information of individual workers with administrative records of the same workers.
Gerard J. van den Berg +2 more
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BMC Public Health, 2011 Background Low participation in population-based follow-up studies addressing psychosocial risk factors may cause biased estimation of health risk but the issue has seldom been examined.
Andersen Johan +10 more
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Understanding the patterns of mode switching in longitudinal studies
Survey Research Methods, 2021 Using mixed-mode data collection is becoming a mainstream way of conducting longitudinal surveys. However, interviewing the same units in a mixed-mode longitudinal design can lead to respondents switching between modes over time.
Alexandru Cernat, Joseph W. Sakshaug
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Survey Research Methods, 2016 Social scientists and health researchers often need valid and reliable health measures from survey respondents to address key research questions, whether on environmental risks, weight and nutrition, physical activity or health / risky behaviours.
Samantha Jayne Parsons, Lucinda Platt
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Magnetic resonance imaging tumor regression shrinkage patterns after neoadjuvant chemotherapy in patients with locally advanced breast cancer: correlation with tumor biological subtypes and pathological response after therapy [PDF]
, 2017 The objective of this study is to analyze magnetic resonance imaging shrinkage pattern of tumor regression after neoadjuvant chemotherapy and to evaluate its relationship with biological subtypes and pathological response.
Anastasi, Emanuela +6 more
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BMC Medical Research Methodology, 2011 Background Maximizing response rates is critically important in order to provide the most generalizable and unbiased research results. High response rates reduce the chance of respondents being systematically different from non-respondents, and thus ...
Grill Joseph P +6 more
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Exponential Type Estimators Using Sub-Sampling Method with Applications in Agriculture
Journal of Agricultural Sciences, 2022 In this article, the family of exponential type estimators with the auxiliary variable is proposed in the case of non-response scheme for the purpose of obtaining the unknown population mean of the study variable. The nonresponse scheme is examined under
Ceren Ünal, Cem Kadılar
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