a sample that is not drawn at random from the whole population, but separately from a number of disjoint strata of the population in order to ensure a more representative sample
See also frame (sense 13)
Examples of 'stratified sample' in a sentence
stratified sample
The surveys used systematic stratified sample.
Aida Pilav, Vildana Doder, Suada Branković 2014, 'Awareness, treatment, and control of hypertension among adult population in the Federationof Bosnia and Herzegovina over the past decade', Journal of Public Health Researchhttp://www.jphres.org/index.php/jphres/article/view/323. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Three stage random nationally representative stratified sample was used.
Biljana Kilibarda, Nadezda Nikolic, Jelena Gudelj Rakic, Milena Vasic 2018, 'Waterpipe use and attitudes related to it among Serbian adult population', Tobacco Prevention and Cessationhttp://www.journalssystem.com/tpc/Waterpipe-use-and-attitudes-related-to-it-among-Serbian-adult-population,90446,0,2.html. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The vegetation was sampled using 74 randomly stratified sample plots.
M.M. Zietsman, G.J. Bredenkamp 2006, 'Dune vegetation and coastal thicket plant communities in threatened limestone fynbosof Andrew's Field and Tsaba-Tsaba Nature Reserve, Struisbaai, Western Cape', Koedoe: African Protected Area Conservation and Sciencehttps://koedoe.co.za/index.php/koedoe/article/view/110. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In order to get detailed information, a complex stratified sample survey design was used.
Berislav Žmuk 2015, 'Business Sample Survey Measurement on Statistical Thinking and Methods Adoption: theCase of Croatian Small Enterprises', Interdisciplinary Description of Complex Systemshttp://indecs.eu/2015/indecs2015-pp154-166.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
For the selection of the sample a probabilistic random stratified sample was used.
Yunia Hernández Ledesma, Dalila A Aguirre Raya, Bárbara Díaz Díaz, Juan Carlos Curbelo 2010, 'Satisfacción laboral en enfermeras de la atención primaria municipio Pinar del Rio,2009 Job satisfaction among nurses of primary health care municipality of Pinar delRio, 2009', Revista Habanera de Ciencias Médicashttp://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1729-519X2010000300019. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The stratified sample was composed of 323 male and female private university students.
Mariana Gonçalves Boeckel, Jorge Castellá Sarriera 2005, 'Análise fatorial do Questionário de Estilos Parentais (PAQ) em uma amostra de adultosjovens universitários The factorial analysis of Parental Authoritative Questionnairein a sample of college young adults', Psico-USFhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-82712005000100002. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
391 people (male and female) were selected using random stratified sample.
Ghasem Sadeghi, Masoud Ahmadi, Maryam Taghvaee Yazdi 2016, 'The relationship between organizational citizenship behavior and organizational performance(case study: Agricultural Jihad Organization of Mazandaran Province)', Problems and Perspectives in Managementhttps://businessperspectives.org/images/pdf/applications/publishing/templates/article/assets/7689/PPM_2016_03si_Sadeghi1.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Using address-based sampling, a stratified sample of 3,496 households was selected.
Haan Marieke, Ongena Yfke P., Aarts Kees 2014, 'Reaching Hard-to-Survey Populations: Mode Choice and Mode Preference', Journal of Official Statisticshttp://www.degruyter.com/view/j/jos.2014.30.issue-2/jos-2014-0021/jos-2014-0021.xml?format=INT. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)