Stratifikovaný

Stratifikovaný is the Czech adjective meaning stratified. It describes something that is organized into layers or strata, each with relatively similar characteristics, while different strata differ from one another. The core idea is the division of a whole into ordered components that can be analyzed or understood separately.

In statistics and research methods, stratifikovaný (stratified) design refers to dividing a population into distinct strata based on a characteristic such as region, age, or risk. A sample is drawn from each stratum, and the results are combined, often with weighting. This approach can improve precision and ensure representation of key subgroups. Strata should be mutually exclusive and collectively exhaustive; allocation across strata can be proportional or optimized to minimize variance.

In geology and soil science, stratifikace describes the layering of rocks, sediments, or soils into discrete layers, or strata. This layering reflects historical processes and can influence physical properties and interpretation of geological records.

In sociology and related social sciences, social stratifikace (stratification) refers to the hierarchical arrangement of society into strata such as classes or social ranks, typically based on factors like income, education, occupation, or status. Social stratification affects access to resources and opportunities and can be persistent or fluid over time.

In ecology and environmental science, stratifikace can describe vertical structure within ecosystems, such as forest canopy layers or stratified aquatic environments, where light, temperature, and species distribution vary by depth or height.

Overall, stratifikovaný denotes the presence or creation of layers, enabling structured analysis, representation, or understanding across disciplines.