نتایج جستجو برای: stage cluster sampling technique

تعداد نتایج: 1290714  

2014
Lawrence T Lam

Background: This study aims to investigate the association between mental health literacy and the mental health status, particularly depression, among adolescents. Methods: This was a population-based health survey utilising a two-stage sampling technique. Mental health literacy was measured by the Australian National Mental Health Literacy and Stigma Youth Survey with the depression vignette o...

1996
Chih-Shun Ding Qing Wu Cheng-Ta Hsieh Massoud Pedram

| In this paper, we present new statistical sampling techniques for performing power estimation at the circuit level. These techniques rst transform the power estimation problem to a survey sampling problem, then apply stratiied random sampling to improve the eeciency of sampling. The stratiication is based on a low-cost predic-tor, such as zero delay power estimates. We also propose a two-stag...

2003
GLEN A. SARGEANT DOUGLAS H. JOHNSON

Scent stations usually are deployed in clusters to expedite data collection and increase the number of stations that can be operated for a given cost. Presumed benefits of cluster sampling may not be realized, however, unless cluster sizes are chosen with respect to sampling variation within and among clusters. To encourage and facilitate the use of efficient designs and reporting standards, we...

2017
Alberto Abadie Susan Athey Guido W. Imbens Jeffrey Wooldridge

In empirical work in economics it is common to report standard errors that account for clustering of units. Typically, the motivation given for the clustering adjustments is that unobserved components in outcomes for units within clusters are correlated. However, because correlation may occur across more than one dimension, this motivation makes it difficult to justify why researchers use clust...

Journal: :International journal of epidemiology 1996
A G Turner R J Magnani M Shuaib

BACKGROUND Although the Expanded Programme on Immunization (EPI) cluster survey methodology has been successfully used for assessing levels of immunization programme coverage in developing country settings, certain features of the methodology, as it is usually carried out, make it less-than-optimal choice for large, national surveys and/or surveys with multiple measurement objectives. What is n...

Journal: :International Journal of Computational and Theoretical Statistics 2015

Journal: :Social Science & Medicine 1986

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