Calculators
Plan and read your tests: sample size, duration, detectable effects and results.
Sample Size Calculator
Calculate the required sample size based on effect size, power, and significance level.
OpenTest Duration Calculator
Estimate how long your test needs to run to achieve statistical significance.
OpenEffect Detection Calculator
Determine the minimum detectable effect for your test configuration, including scaled sizes.
OpenTest Results Calculator
Analyse your test results and calculate confidence intervals and statistical significance.
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