Still in development. See Github repo for Python code and Stan models. Open to comments at uanhoro.1@osu.edu

Description: The test allows the group means and variances to be different.

You can either:

- Permit outliers in the data (assuming
*t*rather than Normal data); OR - Compare the groups at different percentiles (quantile regression)

Clicking submit will print out summary results and download four files:

- A summary file containing summary statistics for parameters and posterior samples.
- A rank plot for the mean difference and SD ratio. Each plot should be uniformly distributed. See: arxiv:1903.08008
- A line chart showing the probability that the mean difference exceeds any value. Answers: What is the probability that the difference between the groups exceeded X?
- Same as last chart but for the ratio of the group standard deviations.

Description: The test allows you compare the success rate of two groups on a binary outcome.

Clicking submit will print out summary results and download four files:

- A summary file containing summary statistics for parameters and posterior samples.
- A rank plot for the odds ratio. Each plot should be uniformly distributed. See: arxiv:1903.08008
- A line chart showing the probability that the odds ratio exceeds any value. Answers: What is the probability that the odds ratio of the groups exceeded X?
- Same as last chart but for the ratio of the group probability/risk ratio and difference.

Description: The model assumes the data are continuous and bounded.

The model works better than the continuous approach above when the data are close to the extremes. Sample data are averaged Likert responses, proportions, ...

Clicking submit will print out summary results and download four files:

- A summary file containing summary statistics for parameters and posterior samples.
- A rank plot for the mean difference and SD ratio. Each plot should be uniformly distributed. See: arxiv:1903.08008
- A line chart showing the probability that the mean difference exceeds any value. Answers: What is the probability that the difference between the groups exceeded X?
- Same as last chart but for the ratio of the group standard deviations.