• 55057 Citations
  • 69 h-Index
1967 …2018
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Fingerprint Fingerprint is based on mining the text of the experts' scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

Clinical Trials Medicine & Life Sciences
Therapeutics Medicine & Life Sciences
Analysis of Covariance Mathematics
Cross-Over Studies Medicine & Life Sciences
Random Allocation Medicine & Life Sciences
Randomized Clinical Trial Mathematics
Placebos Medicine & Life Sciences
Randomized Controlled Trials Medicine & Life Sciences

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Projects 1996 2018

Research Output 1967 2018

A case study in identifying targeted patients population in major depressive disorder by enhanced enrichment design

Zhang, P., Carroll, K., Hobart, M., Augustine, C. & Koch, G., Mar 1 2018, In : Pharmaceutical statistics. 17, 2, p. 144-154 11 p.

Research output: Contribution to journalArticle

Major Depressive Disorder
Disorder
Treatment Effects
Placebos
Population

Performance of intraclass correlation coefficient (ICC) as a reliability index under various distributions in scale reliability studies

Mehta, S., Bastero-Caballero, R. F., Sun, Y., Zhu, R., Murphy, D. K., Hardas, B. & Koch, G., Aug 15 2018, In : Statistics in Medicine. 37, 18, p. 2734-2752 19 p.

Research output: Contribution to journalArticle

Intraclass Correlation Coefficient
Reliability Index
Validation Studies
Reproducibility of Results
Sample Size

Statistical planning in confirmatory clinical trials with multiple treatment groups, multiple visits, and multiple endpoints

Sun, H., Snyder, E. & Koch, G. G., Jan 2 2018, In : Journal of Biopharmaceutical Statistics. 28, 1, p. 189-211 23 p.

Research output: Contribution to journalArticle

Multiple Endpoints
Clinical Trials
Dose
Multiplicity
Planning

A model-based conditional power assessment for decision making in randomized controlled trial studies

Zou, B., Cai, J., Koch, G. G., Zhou, H. & Zou, F., Dec 30 2017, In : Statistics in medicine. 36, 30, p. 4765-4776 12 p.

Research output: Contribution to journalArticle

Conditional Power
Randomized Controlled Trial
Likelihood Functions
Multivariate Normal
Maximum Likelihood Estimate
Multiple Endpoints
Randomized Clinical Trial
Missing Values
Stratification
Baseline