Results 1 to 10 of about 40,440 (298)

Why Patients with Chronic Disease Keep Silent? Analysis of Item Nonresponse in Rural China [PDF]

open access: yesIranian Journal of Public Health, 2019
Background: This study aimed to identify the characteristics of item nonresponse and examine the factors affecting the refusal or failure to respond of patients with chronic disease in rural China.
Yiqing MAO   +6 more
doaj   +2 more sources

Nonignorable item nonresponse in panel data

open access: yesStatistical Theory and Related Fields, 2022
To estimate unknown population parameters based on panel data having nonignorable item nonresponse, we propose an innovative data grouping approach according to the number of observed components in the multivariate outcome $ \boldsymbol {y} $ when the ...
Sijing Li, Jun Shao
doaj   +2 more sources

Data quality in centenarian research: The proxy-centenarian relationship and item nonresponse in the SWISS100 study. [PDF]

open access: yesPLoS ONE
BackgroundIn recent years, there has been a growing interest in the investigation of very old individuals. However, various challenges arise when collecting data from this age group.
Daniele Zaccaria   +6 more
doaj   +2 more sources

Is assessment of oral health-related quality of life burdensome? An item nonresponse analysis of the oral health impact profile [PDF]

open access: yesBMC Oral Health, 2021
Aim This study aimed to investigate if in the 49-item Oral Health Impact Profile (OHIP): (i) more missing data occurred when participants answered more questions, (ii) more missing data occurred in a particular item or set of related items, and (iii ...
Swaha Pattanaik   +4 more
doaj   +2 more sources

Effect of different questionnaire formats on item nonresponse in older patients with cancer [PDF]

open access: yesBMC Geriatrics
Background Self-administered questionnaire surveys are instrumental in revealing patient experiences. However, concerns about the quality of data and validity of results arise from nonresponses, either to the entire survey or to specific items therein ...
Yuichi Ichinose   +7 more
doaj   +2 more sources

Modeling item nonresponse in questionnaires [PDF]

open access: yesQuality and Quantity, 1999
The statistical analysis of empirical questionnaire data can be hampered by the fact that not all questions are answered by all individuals. In this paper we propose a simple practical method to deal with such item nonresponse in case of ordinal ...
Franses, Ph.H.B.F. (Philip Hans)   +2 more
core   +2 more sources

Item nonresponse in face-to-face interviews with children [PDF]

open access: yesJournal of Official Statistics, 2014
This study examined item nonresponse and its respondent and interviewer correlates by means of a population-based, panel survey of children aged 8 to 11 who were surveyed using standardised, face-to-face interviews.
Haunberger, Sigrid
core   +4 more sources

Beliefs, Behaviors, and Practices of Farm Biosecurity in the Midwestern U.S. Swine Operations [PDF]

open access: yesAnimals
Effective biosecurity is crucial for preventing swine diseases, but there can be a gap between what producers intend and what actually happens on the farm. We conducted a cross-sectional, self-administered online survey of Midwestern US swine operations (
Maurine C. Chepkwony   +7 more
doaj   +2 more sources

Exploring the Impact of Online Mental Health Resources During the COVID-19 Pandemic on Lesbian, Gay, Bisexual, Transgender, Queer, and Questioning Adults Compared to Heterosexual Adults: Pretest-Posttest Survey Analyses [PDF]

open access: yesJMIR Formative Research
BackgroundLesbian, gay, bisexual, transgender, queer, and questioning (LGBTQ+) individuals faced greater mental health challenges during the COVID-19 pandemic than binary-gender heterosexual (non-LGBTQ+) adults.
Natalia Ramos   +7 more
doaj   +2 more sources

Item-nonresponse in a household sample survey in Colombia

open access: yesRevista UIS Ingenierías, 2021
Item nonresponse occurs when sample units do not provide information on a particular variable, problem that may affect the representativeness of the sample and the reliability of the estimates.
Josefa Ramoni-Perazzi   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy