Results 11 to 20 of about 4,109,960 (295)

Doubly Robust Inference when Combining Probability and Non-probability Samples with High-dimensional Data [PDF]

open access: yesJournal of The Royal Statistical Society Series B-statistical Methodology, 2019
Non-probability samples become increasingly popular in survey statistics but may suffer from selection biases that limit the generalizability of results to the target population.
Bang   +49 more
core   +6 more sources

Estimating General Parameters from Non-Probability Surveys Using Propensity Score Adjustment

open access: yesMathematics, 2020
This study introduces a general framework on inference for a general parameter using nonprobability survey data when a probability sample with auxiliary variables, common to both samples, is available.
Luis Castro-Martín   +2 more
doaj   +2 more sources

A Non-Parametric Method to Determine Basic Probability Assignment Based on Kernel Density Estimation

open access: yesIEEE Access, 2018
Dempster–Shafer evidence theory has been extensively applied in a variety of fields due to its ability to solve knowledge reasoning and decision-making problem under uncertain environments.
Bowen Qin, Fuyuan Xiao
doaj   +2 more sources

An Innovative Approach to the Design of a National Probability Sample of Sexual Minority Adults

open access: yesLGBT Health, 2020
Purpose: Sampling lesbian, gay, and bisexual (LGB) people to recruit a national probability sample is challenging for many reasons, including the low base rate of LGB people in the population. To address this challenge, researchers have relied on diverse
I. Meyer   +4 more
semanticscholar   +1 more source

Suicidal behaviors: Relationship with body mass index and serological indicators

open access: yesEuropean Psychiatry, 2021
Introduction Current research has demonstrated associations between variables of a biomedical nature with the presence of psychological indicators. Objectives To analyze the relationship between levels of total cholesterol, triglycerides, and Body ...
G. Esgalhado, I. Costa
doaj   +1 more source

Essay: Sunday shopping - The case of three surveys

open access: yesSurvey Research Methods, 2015
There is a growing discussion about the use of non-probability sampling in survey research. Probability sampling is the preferred method of sample selection, but practical problems like reduced data collection budgets, increasing nonresponse rates, and ...
Jelke Bethlehem
doaj   +1 more source

Probability-Distribution-Guided Adversarial Sample Attacks for Boosting Transferability and Interpretability

open access: yesMathematics, 2023
In recent years, with the rapid development of technology, artificial intelligence (AI) security issues represented by adversarial sample attack have aroused widespread concern in society.
Hongying Li   +6 more
doaj   +1 more source

Feasibility of Hair Collection for Cortisol Measurement in Population Research on Adolescent Health [PDF]

open access: yes, 2016
Background: Black–White disparities in adolescent health are widespread and thought to be explained, in part, by exposure to chronic stress. Cortisol assayed from hair is increasingly recognized as a valid and reliable measure for chronic physiological ...
Boch, Samantha J.   +2 more
core   +2 more sources

Methodology series module 5: Sampling strategies

open access: yesIndian Journal of Dermatology, 2016
Once the research question and the research design have been finalised, it is important to select the appropriate sample for the study. The method by which the researcher selects the sample is the 'Sampling Method'.
Maninder Singh Setia
doaj   +1 more source

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