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Fig. 5. —Graph shows correlation (r = 0.925) between
likelihood of malignancy and average change in confidence level (rating
scores) for each nodule by 16 radiologists. Malignant and benign nodules are
marked by black circles and white circles, respectively. 
= average
change in confidence level for malignant nodules, 
= average change in
confidence level for benign nodules, horizontal lines = range of radiologists'
ratings for each nodule. Note that radiologists increased their confidence
level when likelihood of malignancy was greater than 0.50 and decreased their
confidence level when likelihood was less than 0.50 for most malignant and
benign nodules.
