**Sample Size Estimating a Single ROC : ** The data is in 2 columns.

- Each row a separate study

- Col 1 = ROC to be estimated θ

- Col 2 = Standard Error Required

**Standard Error of a Single ROC : ** The data is in 3 columns.

- Each row a separate study

- Col 1 = ROC found θ

- Col 2 = Number of cases with Outcome Negative

- Col 3 = Number of cases with Outcome Positive

**Sample Size Comparing Two ROCs : ** The data is in 4 columns.

- Each row a separate study

- Col 1 = Probability of Type I Error for Decision(α)

- Col 2 = Power (1-β)

- Col 3 and 4 = Anticipated Values of the Two ROCs

**Power Estimation Comparing Two ROCs : ** The data is in 4 columns.

- Each row a separate study

- Col 1 = Probability of Type I Error Found(α)

- Col 2 = sample size per ROC used (Outcome pos + outcome neg)

- Col 3 and Col 4 = Observed Values of the Two ROCs