THE CONCEPT OF SENSITIVITY AND SPECIFICITY IN RELATION TO TWO TYPES OF ERRORS AND ITS APPLICATION IN MEDICAL RESEARCH

  • Devashish Sharma Deptt. of Statistics and Demography, Post Partum Programme
  • U.B. Yadav Deptt. of Orthopaedics M.L.N. Medical College, Allahabad, U.P. (India)
  • Pulak Sharma Deptt. of Orthopaedics M.L.N. Medical College, Allahabad, U.P. (India)
Keywords: True positive, True negative, Fracture neck of femur, Valgus Oseotomy

Abstract

Sensitivity and specificity are two terms widely used in Medical research and are the statistical measures of performance of a binary classification test. In clinical research the sensitivity of a medical test is the probability of its giving a ‘positive’ result when the patient is indeed positive and specificity is the probability of getting ‘negative’ result when the patient is indeed negative. Wrongly identify a healthy person as sick and a sick person as healthy is closely related to the concept of type I and type II errors of testing hypothesis. It was observed that the sensitivity of a test is equal to power of test in hypothesis testing.

 

Downloads

Download data is not yet available.
Published
2009-08-04
Section
Articles