stratified

(adjective)

Having a class structure

Related Terms

Examples of stratified in the following topics:

  • Lab 2: Sampling Experiment

    • The student will demonstrate the simple random, systematic, stratified, and cluster sampling techniques.
    • NOTE : The following section contains restaurants stratified by city into columns and grouped horizontally by entree cost (clusters).
    • Pick a stratified sample, by city, of 20 restaurants.
    • Pick a stratified sample, by entree cost, of 21 restaurants.
    • 1.14.7 Restaurants Stratified by City and Entree CostRestaurants Used in Sample

  • Social Class

    • Society is stratified into social classes on the basis of wealth, income, educational attainment, and occupation.
    • Because real estate values are clustered (neighboring homes are likely to have similar values), neighborhoods are stratified by socioeconomic status.
    • Most social scientists agree that society is stratified into a hierarchical arrangement of social classes.
    • For example, in Mexico, society is stratified into classes determined by European or indigenous lineage as well as wealth.
    • While social scientists offer competing models of class structure, most agree that society is stratified by occupation, income, and educational attainment.

  • Types of Epithelial Tissue

    • Stratified epithelium differs from simple epithelium by being multilayered.
    • Stratified epithelia are more durable and protection is one their major functions.
    • Stratified epithelia can be columnar, cuboidal, or squamous type.
    • The lining of the esophagus is an example of a non-keratinized or moist stratified epithelium.
    • Transitional epithelia are found in tissues that stretch and it can appear to be stratified cuboidal when the tissue is not stretched, or stratified squamous when the organ is distended and the tissue stretches.

  • Three sampling methods (special topic)

    • Stratified sampling is a divide-and-conquer sampling strategy.
    • Stratified sampling is especially useful when the cases in each stratum are very similar with respect to the outcome of interest.
    • The downside is that analyzing data from a stratified sample is a more complex task than analyzing data from a simple random sample.
    • The analysis methods introduced in this book would need to be extended to analyze data collected using stratified sampling.
    • Examples of simple random, stratified, and cluster sampling.

  • Class Structure in the U.S.

    • American society is stratified into social classes based on wealth, income, educational attainment, occupation, and social networks.
    • Most social scientists in the U.S. agree that society is stratified into social classes.
    • Social theorists who dispute the existence of social classes in the U.S. tend to argue that society is stratified along a continuous gradation, rather than into delineated categories.
    • While social scientists offer competing models of class structure, most agree that society is stratified by occupation, income, and educational attainment.

  • Summary

  • Random Sampling

    • Systematic and stratified techniques, discussed below, attempt to overcome this problem by using information about the population to choose a more representative sample.
    • Stratified sampling, which is discussed below, addresses this weakness of SRS.
    • Categorize a random sample as a simple random sample, a stratified random sample, a cluster sample, or a systematic sample

  • Epithelial Tissues

    • Epithelia composed of a single layer of cells is called simple epithelia; epithelial tissue composed of multiple layers is called stratified epithelia.
    • Columnar epithelial cells lining the respiratory tract appear to be stratified.
    • These cells are arranged in a stratified layer, but they have the capability of appearing to pile up on top of each other in a relaxed, empty bladder.
    • These cells can be stratified into layers, as in (b) this human cervix specimen.

  • Intersections of Class, Race, and Gender

    • The United States continues to be greatly stratified along these three lines.

  • Class

    • Social class refers to the grouping of individuals in a stratified social hierarchy, usually based on wealth, education, and occupation.
    • Social class refers to the grouping of individuals into positions on a stratified social hierarchy.
    • In the United States, neighborhoods are stratified by class such that the lower class is often made to live in crime-ridden, decaying areas.