Short, practical explanations written for medical students doing questionnaire research — each with a free calculator or worked example in FormStat.
Population size, anticipated frequency, margin of error and design effect — explained simply, with a worked example.
When to use it, how to read the p-value, and when Fisher's exact test is the better choice.
What "statistically significant" actually means — and the misinterpretations to avoid in your thesis.
Independent, paired or one-sample? A plain-language guide with a worked before/after example.
What F and p really mean, a worked 3-group example, and when to use Kruskal-Wallis instead.
The complete workflow: Forms → Sheet → FormStat → PDF report for your thesis.