The DOI matches its Crossref record.
Sample Size Calculations in Clinical Research
Abstract
Sample size calculation plays an important role in clinical research. It is not uncommon, however, to observe discrepancies among study objectives (or hypotheses), study design, statistical analysis (or test statistic), and sample size calculation. Focusing on sample size calculation for studies conducted during the various phases of clinical resea
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Considerations in determining sample size for pilot studies
Hertzog, M. A. (2008) · Research in Nursing & Health · doi:10.1002/nur.20247 · Cited by 2,337
Kalra, N., & Paddock, S. M. (2016) · Transportation Research Part A: Policy and Practice · doi:10.1016/j.tra.2016.09.010 · Cited by 1,221
Estimating required information size by quantifying diversity in random-effects model meta-analyses
Wetterslev, J., Thorlund, K., Brok, J., & Gluud, C. (2009) · BMC Medical Research Methodology · doi:10.1186/1471-2288-9-86 · Cited by 938
Harris, P. N. A., Tambyah, P. A., Lye, D. C., Mo, Y., Lee, T. H., Yilmaz, M., Alenazi, T. H., Arabi, Y., Falcone, M., Bassetti, M., et al. (2018) · JAMA · doi:10.1001/jama.2018.12163 · Cited by 774
Sample Size Estimation in Clinical Research
Wang, X., & Ji, X. (2020) · Chest · doi:10.1016/j.chest.2020.03.010 · Cited by 452
Metadata
- Authors
- Chow, S.-C., Wang, H., & Shao, J.
- Venue
- CRC Press eBooks
- Publisher
- CRC Press
- Published
- 2003-03-04
- OpenAlex
- W2479717569
- Cited by
- 807
- References
- 0
- FWCI
- 2.20
- Type
- book
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Sample Size Calculations in Clinical Research. https://app.cochat.ai/papers/10.1201/9780203911341
- The paper
- Chow, S.-C., Wang, H., & Shao, J. (2003). Sample Size Calculations in Clinical Research. CRC Press eBooks. https://doi.org/10.1201/9780203911341
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
