Interactive Decision Assistant

A click-through wizard that routes you from research question to recommended statistical test

Answer three to five questions about your research design. The wizard responds with a recommended test, a one-paragraph rationale, and a link to the full method page. Every recommendation is traceable: the breadcrumb at the top shows the path you took, and the URL encodes the path so you can bookmark or share it.

JavaScript is required for the interactive wizard. Use the static decision tree instead.

How to use it

Start with the first question and pick the option that matches your design.
Use Back to revisit a decision; the wizard preserves the prior path.
Use Start over to reset.
Click the recommendation link at the end to open the full method page with R code.
The URL updates on every choice; copy it to share the exact path.

When the wizard is not enough

The wizard is opinionated about the most common paths in clinical and biomedical research. For cases not covered – multilevel models, survival analysis, Bayesian inference, time-series methods – consult the main tutorial index for the relevant section.

Accessibility

Keyboard navigation: arrow keys move focus between options; Enter selects.
Screen-reader friendly via radiogroup ARIA semantics and aria-live recommendation panel.
Works on mobile down to 375 px width.

Alternative view

If you prefer a single-page overview, see the static decision tree.

Structure inspired by the University of Zurich Methodenberatung (methodenberatung.uzh.ch). All text, examples, R code, and reporting sentences are independently authored in English.