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Sample Size Calculator (web)

Area Under ROC (AUROC) Curve - Hypothesis Testing

Minimum AUROC (H₀):
Expected AUROC (H₁):
Prevalence of disease (p):
Significance level (α): Two-tailed
Power (1 - β): %
Expected dropout rate: %

Sample size, n =
Sample size (with 10% dropout), n_drop =

Area Under ROC (AUROC) Curve - Estimation

Expected AUROC:
Prevalence of disease (p):
Precision (± expected):
Confidence level 100(1 - α): %
Expected dropout rate: %

Sample size, n =
Sample size (with 10% dropout), n_drop =

References:

Zhou, X. H., Obuchowski, N. A., & McClish, D. K. (2011). Statistical methods in diagnostic medicine (2nd ed.). Hoboken, New Jersey: John Wiley & Sons. [Equation 6.2, 6.6, 6.8]

Suggested reference:

APA: Arifin, W. N. (). Sample size calculator (web). Retrieved from http://wnarifin.github.io

Vancouver: Arifin WN. Sample size calculator (web) [Internet]. [cited ]. Available from: http://wnarifin.github.io

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