Final answer:
The best measure to determine if two physicians arrived at the same diagnosis upon reviewing the same CT scan is the kappa statistic, which evaluates agreement between raters on categorical data. he Correct Answer is Option .C.
Step-by-step explanation:
To determine if two different physicians arrived at the same diagnosis upon separately reviewing the same CT scan for a patient, the measure used would be the kappa statistic. Kappa is a statistical measure used to evaluate the level of agreement between two or more raters who make categorical decisions and can account for the agreement occurring by chance.
This is opposed to a coefficient of correlation, which assesses the strength of association between continuous variables, or an odds ratio, which is more suitable for measuring the strength of association between an exposure and an outcome in a study.