MEANING
1. To divide a population or set of observations into distinct layers or subgroups.
2. To form or arrange something in layers.
Use it for
representative sampling; subgroup analysis; social hierarchyExplain which layers are distinguished and why.
Words that belong together
- stratify a sample
- stratify by income
- socially stratified
On the page
The sample was stratified by district to include smaller communities.
Researchers stratified the results by prior educational attainment.
Access to elite occupations can stratify a society across generations.
Nearby words
Related words
Word forms
- Base
- stratify / stratifies
- Past tense
- stratified
- Past participle
- stratified
- Present participle
- stratifying
Full tense & aspect guide
- Present
- stratify / stratifies
- Present continuous
- am/is/are stratifying
- Present perfect
- have/has stratified
- Present perfect continuous
- have/has been stratifying
- Past
- stratified
- Past continuous
- was/were stratifying
- Past perfect
- had stratified
- Past perfect continuous
- had been stratifying
- Future
- will stratify / stratifies
- Future continuous
- will be stratifying
- Future perfect
- will have stratified
- Future perfect continuous
- will have been stratifying
Choose the auxiliary that agrees with your subject. These are constructions of one word, not separate entries.
Usage notes
Primary category: academic. In research, strata are defined for sampling or analysis; in society, stratification can refer to ranked social layers. Stratified sampling is not the same as arbitrary grouping. Verb inflections [base, third-person singular, past, past participle, -ing]: stratify, stratifies, stratified, stratified, stratifying. Derived family (not inflections): stratification; stratum is a related noun, plural strata.
Practice this word in a sentenceYour margin notes
Keep a thought for later. Sign in to save privately.