Question regarding HW 1, question 5a

Question regarding HW 1, question 5a

by Teresa Kortz -
Number of replies: 3

Quick question. Are complete disagreements when one radiologist thinks that the x-ray is normal and the other thinks that it is malignant, or any time that the two radiologists do not completely agree?

Thanks,

Teresa

In reply to Teresa Kortz

Re: Question regarding HW 1, question 5a

by Michael Kohn -

Complete disagreement = "one radiologist thinks that the x-ray is normal and the other thinks that it is malignant"

In reply to Teresa Kortz

Re: Question regarding HW 1, question 5a

by Juvenal -

complete disagreements are when the two radiologists' observations are far apart eg malignant and normal.

My question then is: do we consider malignant and benign or normal and indeterminate as complete disagreements?

In reply to Juvenal

Re: Question regarding HW 1, question 5a

by Thomas Newman -

By "complete disagreements" we mean they disagreed as much as they possibly could.  Any other level of disagreement would count as partial agreement, and tend to increase Kappa at least a little if it occurred more often than expected.

Tom