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The Use Of A Computer In The Diagnosis Of Intracranial Tumours, G. H. Du Boulay
The Use Of A Computer In The Diagnosis Of Intracranial Tumours, G. H. Du Boulay
MCV/Q, Medical College of Virginia Quarterly
Experiments in the use of a computer as an aid to diagnosis of intracranial tumours have been started at St. Bartholomew's Hospital in collaboration with The City University. The computer can estimate the probability that a patient has any given type of tumour by comparing the results of tests with those obtained in previous patients whose diagnoses have been established. The computer also determines which is the best investigation, from a statistical point of view, to perform next on the patient in order to confirm the diagnosis.
Some Malpractices In Medical Statistics, James S. Kilpatrick Jr.
Some Malpractices In Medical Statistics, James S. Kilpatrick Jr.
MCV/Q, Medical College of Virginia Quarterly
Since it is now fashionable for papers in medical journals to contain statistical notations, it also follows that in a certain fraction of these the statistical content is wrongly applied. These malpractices may be classified as numerical, statistical, and methodological. To illustrate some of the most commonly occurring errors the following examples are given.
A Ranking Test In The Biological Sciences, Kenneth Mullen
A Ranking Test In The Biological Sciences, Kenneth Mullen
MCV/Q, Medical College of Virginia Quarterly
Laboratory analyses of biological materials are ranked in order of magnitude and summed across materials to give a list of laboratory scores. Under the assumed hypothesis that there is in fact no difference between laboratories, Monte-Carlo techniques are used to establish two-tailed 5% rejection limits for various combinations of laboratories and materials. The hypothesis that there is no difference between laboratories is rejected if any laboratory's score lies outside the 5% limits. Suppose that one needs to run a group of tests on a particular set of materials (chemical or biological), using a number of different laboratories, and wishes to …