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On Generalized Indices of Diagnostic Efficiency
Author(s) -
Bennett B. M.
Publication year - 1982
Publication title -
biometrical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.108
H-Index - 63
eISSN - 1521-4036
pISSN - 0323-3847
DOI - 10.1002/bimj.4710240106
Subject(s) - palpation , diagnostic test , predictive value , sensitivity (control systems) , statistics , value (mathematics) , mathematics , medicine , test (biology) , disease , econometrics , pediatrics , pathology , surgery , engineering , electronic engineering , paleontology , biology
The usual definitions of sensitivity, specificity and predictive value of a diagnostic test T refer only to the situation of the presence or absence of disease. There is then question of the appropriate extensions of these definitions in cases where there are more than two diagnostic categories, especially with ordered or graded responses. This paper deals with some aspects of this problem. An example with the data of B ERGESON and S TEINFELD (1974) on gradings of fever in children by palpation is analyzed, using the methods discussed in this paper.