Results 1 to 10 of about 4,578,298 (196)

Weight smoothing for nonprobability surveys [PDF]

open access: yesTest, 2021
This study was partially supported by Ministerio de Ciencia e Innovacion, Spain [grant number PID2019-106861RB-I00/AEI/10.13039/501100011033], the IMAG-Maria de Maeztu grant [grant number CEX2020-001105-M/AEI/10.13039/501100011033] and, in terms of the ...
Ramon Ferri-García   +1 more
exaly   +7 more sources

Nonprobability Web Surveys to Measure Sexual Behaviors and Attitudes in the General Population: A Comparison With a Probability Sample Interview Survey [PDF]

open access: yesJournal of Medical Internet Research, 2014
BackgroundNonprobability Web surveys using volunteer panels can provide a relatively cheap and quick alternative to traditional health and epidemiological surveys.
Erens, Bob   +14 more
doaj   +8 more sources

Estimating response propensities in nonprobability surveys using machine learning weighted models [PDF]

open access: yesMathematics and Computers in Simulation
Propensity Score Adjustment (PSA) is a widely accepted method to reduce selection bias in nonprobability samples. In this approach, the (unknown) response probability of each individual is estimated in a nonprobability sample, using a reference ...
Ramon Ferri-García   +2 more
exaly   +8 more sources

A Review of Conceptual Approaches and Empirical Evidence on Probability and Nonprobability Sample Survey Research [PDF]

open access: yesJournal of Survey Statistics and Methodology, 2020
There is an ongoing debate in the survey research literature about whether and when probability and nonprobability sample surveys produce accurate estimates of a larger population. Statistical theory provides a justification for confidence in probability
Carina Cornesse   +2 more
exaly   +10 more sources

Inference from Non-Probability Surveys with Statistical Matching and Propensity Score Adjustment Using Modern Prediction Techniques [PDF]

open access: yesMathematics, 2020
Online surveys are increasingly common in social and health studies, as they provide fast and inexpensive results in comparison to traditional ones. However, these surveys often work with biased samples, as the data collection is often non-probabilistic ...
Luis Castro-Martín   +2 more
doaj   +5 more sources

Sample Surveys: Nonprobability Sampling

open access: yes, 2001
Nonprobability sampling describes any method for collecting survey data which does not utilize a full probability sampling design. Nonprobability samples are usually cheaper and easier to collect than probability samples.
J.J. Forster, Forster, J.J.
exaly   +4 more sources

Comparing and Improving the Accuracy of Nonprobability Samples: Profiling Australian Surveys [PDF]

open access: yes, 2023
There has been a great deal of debate in the survey research community about the accuracy of nonprobability sample surveys. This work aims to provide empirical evidence about the accuracy of nonprobability samples and to investigate the performance of a ...
Baffour, Bernard, Kocar, Sebastian
core   +5 more sources

Comparing Probability-Based Surveys and Nonprobability Online Panel Surveys in Australia: A Total Survey Error Perspective

open access: yesSurvey Research Methods, 2022
In this paper we report the findings from our study which was undertaken to learn if the findings of Chang et al. (2009), Yeager et al. (2011), Erens et al. (2014), MacInnis et al. (2018) and Cornesse et al. (2020) would be replicated in Australia.
Paul John Lavrakas   +3 more
doaj   +2 more sources

Evaluating the accuracy of survey data: a case study of COVID-19 vaccination rates in Germany [PDF]

open access: yesBMC Medical Research Methodology
Background Surveys are an important source of timely and comprehensive population health data and play a crucial role in public health research and policymaking, as shown during the COVID-19 pandemic.
Karolina von Glasenapp
doaj   +2 more sources

Topics in estimation for messy surveys: imperfect matching and nonprobability sampling [PDF]

open access: yes, 2022
2022 Summer.Includes bibliographical references.Two problems in estimation for "messy" surveys are addressed, both requiring the combination of survey data with other data sources. The first estimation problem involves the combination of survey data with
Wang, Haonan, committee member   +4 more
core   +2 more sources

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