Sample size assistant
Live- What you get
- Design check, published values with the quoted sentence, the calculation in Word, reviewer questions and a short ethics committee text.
- Why it matters
- A sample size an ethics committee can trace to a paper.
Twenty-one services across six stages of a study. Six are live today; the rest open one by one. Every service follows the same rule: numbers and references you can trace to their source.
Decide the design, the sample size and the protocol before any data is collected.
Find and organise the published evidence.
Turn the analysis into clear, referenced text.
Show your work at meetings and conferences.
Prepare a manuscript for a journal and answer its reviewers.
Make sure the finished document meets the standard asked for.
Tell us what you need and the deadline. We open services in the order researchers ask for them, and we will email you when yours is ready.
Send a requestYou review it, you own it, and you follow your institution's rules on AI, including any requirement to disclose it. Read the AI use policy.
How we keep it honest