define stratification in statistics - EAS
- What is Stratification
? Stratification is a method to divide the data into categories or groups (homogeneous kind) and go for further analysis using descriptive, graphical representation or advanced level of statistics. It derives the meaningful information from the data and helps to understand the existing problem.Social stratification
Social stratification is a society's categorization of people into socioeconomic strata, based upon their occupation and income, wealth and social status, or derived power (social and political). As such, stratification is the relative social position of persons within a social group, category, geographic region, or social unit.
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In clinical trials, patients are sometimes stratified (allocated) into groups based on any characteristic that may affect the trial outcome. The idea is that you take all of the people with factors that could make the trial unbalanced—like obesity, age, or disease stage—and spread those people randomly among strata. Rando… See more
Fields that use this definition for stratification include the social sciences, where people are often sorted into groups by rank, caste, or other social status. For example, in England, you a… See more
Peto R, Pike MD, Armitage P, Breslow NE, Cox DR, Howard SV, Mantel N, McPherson K, Peto J, Smith PG: Design and analysis of randomized clinical trials requiring prolonged observ… See more
- https://stats.oecd.org/glossary/detail.asp?ID=2572
WebDefinition: Stratification consists of dividing the population into subsets (called strata) within each of which an independent sample is selected. Context: The division of a …
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What is Stratification? Stratified Analysis | ASQ
https://asq.org/quality-resources/stratificationWebStratification is defined as the act of sorting data, people, and objects into distinct groups or layers. It is a technique used in combination with other data analysis tools. When data from a variety of sources or …
- https://www.scribbr.com/methodology/stratified-sampling
WebSep 18, 2020 · In a stratified sample, researchers divide a population into homogeneous subpopulations called strata (the plural of stratum) based on specific characteristics (e.g., …
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WebNov 15, 2020 · Stratification refers to the process of classifying sampling units of the population into homogeneous units. In stratified random sampling, any feature that …
- https://qsutra.com/explore/knowledge-base/stratification
WebStratification is a method to divide the data into categories or groups (homogeneous kind) and go for further analysis using descriptive, graphical representation or advanced level of statistics. It derives the …
- https://en.wikipedia.org/wiki/Stratified_randomization
WebIn statistics, stratified randomization is a method of sampling which first stratifies the whole study population into subgroups with same attributes or characteristics, known as strata, …
- https://www.formpl.us/blog/stratified-sampling
WebSep 24, 2021 · Stratified sampling is a selection method where the researcher splits the population of interest into homogeneous subgroups or strata before choosing the …
- https://study.com/academy/lesson/what-is-data-stratification.html
WebThe process of data stratification is an essential part of the Six Sigma application, as it allows Michelle and Dana to search for differences from one stratum to the next.
- https://www.isixsigma.com/dictionary/stratification
WebNov 7, 2018 · Stratification is the subdividing of your data into a hierarchy of less and less detailed levels. This will allow you to gain a deeper understanding and differentiation of …
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