نتایج جستجو برای: wave nonresponse
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Introduction This paper describes the sources, magnitude, and correlates of missing data in Behavioral Risk Factor Surveillance System Sexual Orientation Gender Identity module. Methods Missing from module fielded 2014 to 2019 were ascribed 4 sources: optional nature module, out-of-state cell phone respondents, interview termination, item nonresponse. The prevalence missingnes...
While traditional survey literature has addressed three possible response behaviors http://www.ascusc.org/jcmc/vol6/issue3/boznjak.html (1 of 14) [8/18/02 2:20:05 PM] Classifying Response Behaviors in Web-based Surveys (unit nonresponse, item nonresponse, and complete response), Web surveys can capture data about a respondent’s answering process. Based on this data, at least seven response patt...
Questionnaire designers are encouraged to write questions as complete sentences. In self-administered surveys, incomplete question stems may reduce visual clutter but also increase burden when respondents need scan the response options fully question. We experimentally examine effects of three categories (incomplete conversational, ordinal, and nominal questions) versus on 53 items in a probabi...
A summary of the results of a series of studies of nonresponse and measurement error in the National Household Survey on Drug Abuse (NHSDA) is given in this chapter. Two studies not previously reported, the Skip Pattern Experiment and the Census Match Study, are the primary focus of the chapter. The Skip Pattern Experiment involved a test of a modified NHSDA questionnaire that made extensive us...
This article concerns item nonresponse adjustment for two-stage cluster samples. Specifically, we focus on two types of nonignorable nonresponse: nonresponse depending on covariates and underlying cluster characteristics, and depending on covariates and the missing outcome. In these circumstances, standard weighting and imputation adjustments are liable to be biased. To obtain consistent estima...
Using unpublished data from five completed prevalence surveys of Parkinson's disease (PD), we investigated case ascertainment uncertainties that potentially have a direct effect on prevalence. These uncertainties arise from the choice of diagnostic criteria, the choice of screening method, and the amount of information lost because of nonresponse. The surveys were conducted in Argentina, India,...
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