Results 1 to 10 of about 16,137,556 (298)

VAMS-Based Blood Capillary Sampling for Mass Spectrometry-Based Human Metabolomics Studies

open access: yesMetabolites, 2023
Volumetric absorptive microsampling (VAMS) is a recently developed sample collection method that enables single-drop blood collection in a minimally invasive manner.
Chiara Volani   +6 more
doaj   +1 more source

Simulation Studies for Complex Sampling Designs

open access: yesAustrian Journal of Statistics, 2016
Choosing the appropriate variance estimation method in complex surveys is a difficult task since there exist a variety of techniques which usually cannot be compared mathematically. A relatively easy way to accomplish such a comparison is on the basis of
Helga Wagner, Doris Eckmair
doaj   +1 more source

A Categorization of Behaviors Reported in Experience Sampling Studies

open access: yesSocial Psychological Bulletin, 2020
Experience sampling is considered one of the best methods for measuring behavior (Furr, 2009, https://doi.org/10.1002/per.724). When used for this purpose, it requires a coding system to transform diversified reports on what people are doing, provided as
Ewa Skimina   +7 more
doaj   +1 more source

Sampling: how to select participants in my research study? [PDF]

open access: yesAnais Brasileiros de Dermatologia, 2016
: Background: In this paper, the basic elements related to the selection of participants for a health research are discussed. Sample representativeness, sample frame, types of sampling, as well as the impact that non-respondents may have on results of a
Jeovany Martínez-Mesa   +4 more
doaj   +2 more sources

Doing Online Surveys: Zum Einsatz in der sozialwissenschaftlichen Raumforschung

open access: yesRaumforschung und Raumordnung, 2015
Empirical social research made use of online surveys since the mid-1990s. However, there is no significant methodological debate about this empirical tool in socio-scientific regional studies.
Robert Nadler   +2 more
doaj   +1 more source

Minimally invasive blood sampling method for genetic studies on Gopherus tortoises [PDF]

open access: yesAnimal Biodiversity and Conservation, 2015
Método de extracción de sangre mínimamente invasivo para estudios genéticos en tortugas terrestres del género Gopherus La obtención de muestras de tejido de buena calidad es la primera dificultad en cualquier estudio molecular.
L. M. García–Feria   +2 more
doaj   +2 more sources

Projeto Idoso da Floresta: indicadores de saúde dos idosos inseridos na Estratégia de Saúde da Família (ESF-SUS) de Manaus-AM, Brasil

open access: yesRevista Brasileira de Geriatria e Gerontologia
Resumo Introdução: estudos sobre o idoso que vive na Região Norte do Brasil ainda são incipientes e necessários para subsidiar programas de saúde pública.
Euler Esteves Ribeiro   +6 more
doaj   +1 more source

A Study on Sample Allocation for Stratified Sampling

open access: yesKorean Journal of Applied Statistics, 2015
Stratified random sampling is a powerful sampling strategy to reduce variance of the estimators by incorporating useful auxiliary information to stratify the population. Sample allocation is the one of the important decisions in selecting a stratified random sample.
Ingue Lee, Mingue Park
openaire   +2 more sources

Population-based assessment of health, healthcare utilisation, and specific needs of Syrian migrants in Germany: what is the best sampling method?

open access: yesBMC Medical Research Methodology, 2019
Background Studies elucidating health-related information and special needs of Syrian migrants living in Germany are urgently required. However, data is scarce and finding appropriate sampling strategies to obtain representative results is challenging ...
Tobias Weinmann   +5 more
doaj   +1 more source

Statistical Reporting Quality in Dental Research: A Comparative Analysis by Journal Impact and Study Design

open access: yesContemporary Clinical Dentistry
Background: Determine the statistical report quality of articles published in dental journals according to the level of impact of the journal and the study design.
Manuel Antonio Mattos-Vela   +4 more
doaj   +1 more source

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