deciles
Ten equal portions
Deciles divide a ranked dataset into ten equal parts.
If test scores are sorted from lowest to highest, the first decile marks where the bottom 10% fall, the fifth decile is the median, and the ninth decile separates the top 10%.
Students in the highest decile qualified for the honors program.
The term appears frequently in statistics, economics, and educational research.
Allocation across recipients
- rankingOrdered position assignment
- medianCentral sorted value
- centilesHundredth-division ranking points
- quantilesPoints dividing ranked data
data · thresholds · cutoffs · intervals · segments · divisions · frequency · normal curve
Ranges grouping earners by pay
- wealth distributionHow prosperity is shared
- inequalityUnequal distribution of resources
- household incomeTotal money a home receives
- earningsMoney gained from work
class · poverty line · affluence · wage gap · social mobility · census · demographics · tax brackets
Numerical exam results
- standardized testingIdentical assessments across populations
- grade distributionHow scores are allocated
- assessmentFormal evaluation of worth
- achievement levelsRanked stages of progress
norm-referenced · scoring · evaluation · academic standing · class rank · grading curve · benchmarks · proficiency levels
distribution
Allocation across recipients
- rankingOrdered position assignment
- medianCentral sorted value
- centilesHundredth-division ranking points
quantiles · data · thresholds · cutoffs · intervals · segments · divisions · frequency · normal curve · bell curve
income brackets
Ranges grouping earners by pay
- wealth distributionHow prosperity is shared
- inequalityUnequal distribution of resources
- household incomeTotal money a home receives
earnings · class · poverty line · affluence · wage gap · social mobility · census · demographics · tax brackets · middle class
test scores
Numerical exam results
- standardized testingIdentical assessments across populations
- grade distributionHow scores are allocated
- assessmentFormal evaluation of worth
achievement levels · norm-referenced · scoring · evaluation · academic standing · class rank · grading curve · benchmarks · proficiency levels · exam results
- grading termsmint, near mint, excellent, very good, good
- sorting methodsalphabetical, chronological, sequential, numerical, ranking
decilesquartiles
Four-part data divisions
quintiles · percentiles · median · halves · centiles