percentile

Hundredth-based ranking measure

A percentile is a value on a scale of one hundred that indicates the percentage of a distribution that falls at or below it.

If a student scores in the 90th percentile on a standardized test, that student performed as well as or better than 90 percent of test-takers.

Percentiles are commonly used in education, healthcare, and statistics to show relative standing within a group.

Her height is in the 75th percentile for her age.

ranking

standing

Position, physical or social

above · below · top · bottom · cutoff · threshold · score · placement · position · tier

statistics

quartile

Data division into fourths

  • decileTen-part statistical division
  • quantileDistribution division point
  • z-scoreStandardized deviation measure

standard deviation · normal distribution · bell curve · median · mean · cumulative · distribution · variability · probability · frequency

growth

growth chart

Record of physical development

BMI · developmental · infant · child · milestone · tracking · curve · measurement · checkup · physician

testing

SAT

College admissions exam

  • ACTCollege readiness assessment
  • GREGraduate school entrance exam
  • IQIntelligence score

standardized test · score report · admission · grades · GPA · assessment · evaluation · performance · achievement · proficiency

Categories
Opposites
relative vs. absolute measurement

percentileraw score

Unmodified numerical result

absolute value · raw data · actual value · cardinal number · nominal value

rank-based vs. value-based metrics

percentileraw score

Unmodified numerical result

point total · z-score · count · sum

statistical ranking method

percentilequartile

Data division into fourths

decile · z-score · stanine

Phrases
Family

percentiles

Familiarity
Top 100,000
Profile
Used worldwide · Timeless · Abstract · Rated G