stratify
STRAT-ih-fy
/ˈstrætɪfaɪ/
To arrange or classify a population or dataset into distinct social or statistical layers (strata).
Implies deliberate division into structured layers based on specific criteria like income or age.
The story behind the word. Originally a geological term derived from Latin 'stratum' (something spread out, bed layer). In the 20th century, sociologists adapted it to describe social hierarchy.
Word relationships
- layer: 'Layer' is non-technical; 'stratify' is the formal scientific term.
- categorize: 'Categorize' puts items in bins; 'stratify' organizes them into hierarchical or structured layers.
- equalize: Removes distinct layers or hierarchy.
- homogenize: Blends distinct layers into a uniform mixture.
Commonly confused with
- stultify: Stratify means to organize into layers; stultify means to cause to lose enthusiasm or initiative.
Word family
- stratification (noun): The condition of being divided into layers or strata.
- stratum (noun): A single layer within a stratified system (plural: strata).
Collocations
- stratify data
- socially stratified
- stratified sample
- stratify by age
Example sentences
- "Researchers stratify the population by income level to ensure balanced survey representation." Sampling methodology
- "Urban housing markets tend to stratify residents along socioeconomic lines." Sociological research
Memory hook
STRATA (layers) + FY (make) = make into distinct layers. Make distinct layers.
When not to use
Do not use for random sorting or unstructured grouping.
Fun facts
- Stratified sampling guarantees that small subgroups are represented proportionately in nationwide polls.
Related words
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