Results 1 to 10 of about 4,109,960 (295)

On valid descriptive inference from non-probability sample [PDF]

open access: yesStatistical Theory and Related Fields, 2019
We examine the conditions under which descriptive inference can be based directly on the observed distribution in a non-probability sample, under both the super-population and quasi-randomisation modelling approaches.
Li-Chun Zhang
doaj   +7 more sources

Comparing the health of non-binary and binary transgender adults in a statewide non-probability sample. [PDF]

open access: yesPLoS ONE, 2019
BackgroundIn the U.S., non-binary refers to transgender people who have a gender identity not aligned with their assigned sex at birth, and who identify outside of the traditional male-female binary, such as genderqueer, genderfluid, or gender ...
Sari L Reisner, Jaclyn M W Hughto
doaj   +3 more sources

An Approach to Integrating a Non-Probability Sample in the Population Census

open access: yesMathematics, 2023
Population censuses are increasingly using administrative information and sampling as alternatives to collecting detailed data from individuals. Non-probability samples can also be an additional, relatively inexpensive data source, although they require ...
Ieva Burakauskaitė, Andrius Čiginas
doaj   +2 more sources

Social disconnectedness and depressive symptoms across age groups: findings from a non-probability sample of employed U.S. adults [PDF]

open access: yesFrontiers in Public Health
BackgroundRates of social disconnectedness and depression have intensified in recent years. Yet, little is known about how they relate to one another across different age groups.
Moka Yoo-Jeong   +8 more
doaj   +2 more sources

Combining Non-Probability and Probability Survey Samples Through Mass Imputation [PDF]

open access: yesJournal of the Royal Statistical Society Series A: Statistics in Society, 2021
Abstract Analysis of non-probability survey samples requires auxiliary information at the population level. Such information may also be obtained from an existing probability survey sample from the same finite population. Mass imputation has been used in practice for combining non-probability and probability survey samples and making ...
Kim, Jae Kwang   +3 more
openaire   +6 more sources

Sampling Methods and Sample Size Determination in Clinical Research: An Educational Review [PDF]

open access: yesJournal of General and Family Medicine
Clinical research validity depends critically on sound sampling methodology and adequate sample size determination, yet many published studies demonstrate deficiencies in these fundamental aspects.
Azzam Zrineh   +2 more
doaj   +2 more sources

On using a non-probability sample for the estimation of population parameters

open access: yesLietuvos Matematikos Rinkinys, 2023
We aim to find a way to effectively integrate a non-probability (voluntary) sample under the data framework, where the study variable is also observed in a probability sample of some statistical survey.
Ieva Burakauskaitė, Andrius Čiginas
doaj   +3 more sources

FlexSketch: Estimation of Probability Density for Stationary and Non-Stationary Data Streams

open access: yesSensors, 2021
Efficient and accurate estimation of the probability distribution of a data stream is an important problem in many sensor systems. It is especially challenging when the data stream is non-stationary, i.e., its probability distribution changes over time ...
Namuk Park, Songkuk Kim
doaj   +1 more source

Data quality assessment and subsampling strategies to correct distributional bias in prevalence studies

open access: yesBMC Medical Research Methodology, 2021
Background Healthcare-associated infections (HAIs) represent a major Public Health issue. Hospital-based prevalence studies are a common tool of HAI surveillance, but data quality problems and non-representativeness can undermine their reliability ...
A. D’Ambrosio   +4 more
doaj   +1 more source

Sample sizes for non-inferiority studies based on the difference between two proportions: a unified approach for difference, ratio and odds ratio models

open access: yesEpidemiology, Biostatistics and Public Health, 2020
Background: It is never easy to make sample size calculation for two-arm, non-inferiority studies with a primary proportion outcome not only because the different parameterisations involved in the difference, ratio, and odds ratio models lead to ...
Bruno Mario Cesana, Paolo Antonelli
doaj   +1 more source

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