I'm trying to help a pathologist friend with a study and am not sure how to
proceed. She has 15 cases that are positive for a disease. There are two
standard methods for diagnosing the disease from tissue samples, say A and B.
A and B each produce a rating of High, Medium or Low on the indicator used
for diagnosis. Each case has been rated by each method. She would like to
know if there is a statistically significant difference in the number of
false negatives between the two methods. It would also be useful to know if
collapsing, for example, High and Medium into one category yields a lower
false negative rate.
Any suggestions on how to proceed most welcome.
Best,
Tom Dietz
Professor of Sociology and Crop and Soil Sciences
Acting Director of the Environmental Science and Policy Program
Acting Associate Dean for Environmental Science and Policy, College of
Agriculture and Natural Resources, College of Natural Science, College of
Social Science
Michigan State University
Off campus phone: 802-372-4389
Off campus fax: 802-372-4389
Email: [email protected]
Office: 118 Linton
On campus phone: 517-355-0302
On campus fax: 517-353-3355
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