FPR

Units & Measurements abbreviation · Statistics

FPR
Stands forFalse positive rate
CategoriesUnits & Measurements

FPR stands for False positive rate, a statistics abbreviation.

The proportion of actual negatives that a test wrongly flags as positive, equal to 1 minus specificity. Spam filters, fraud systems and medical screening tests aim for a low FPR.

Example: Lowering the alarm threshold raised the FPR from 2 to 9 percent.

Usage notes

FPR = FP / (FP + TN). When a condition is rare, even a small FPR can mean most positive results are false, the base-rate fallacy. The FPR forms the x-axis of the ROC curve. It differs from the false discovery rate, which divides by all positive results instead.

More statistics abbreviations

  • DOE – Design of experiments
  • EDA – Exploratory data analysis
  • EFA – Exploratory factor analysis
  • EM – Expectation-maximization
  • F – F-statistic
  • FDR – False discovery rate
  • GARCH – Generalized autoregressive conditional heteroskedasticity
  • GLM – Generalized linear model
  • H0 – Null hypothesis
  • H1 – Alternative hypothesis
  • HR – Hazard ratio
  • ICC – Intraclass correlation coefficient

See all 88 statistics abbreviations →

Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.