Sampling distributions of ppos and pneg.
In the absence of a gold standard, assessment of clinimetric properties of dichotomous variables should include reporting of the proportions of positive agreement (ppos) and negative agreement (pneg).
For example, for a patient considering whether or not to undergo elective surgery, ppos represents the probability that a second physician would concur with a recommendation to undergo surgery and pneg represents the probability that a second physician would concur with a recommendation not to undergo surgery.
This article uses a conditional binomial distribution to derive the sampling distributions of ppos and pneg.
The sampling distribution can be used as a basis for confidence intervals and hypothesis tests.
Mots-clés Pascal : Statistique, Distribution échantillonnage, Intervalle confiance, Accord, Précision, Evaluation, Chirurgie, Traitement, Médecin, Homme
Mots-clés Pascal anglais : Statistics, Sampling distribution, Confidence interval, Agreement, Accuracy, Evaluation, Surgery, Treatment, Physician, Human
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 96-0461687
Code Inist : 002B30A01A1. Création : 10/04/1997.