Section randomisation
Section randomisation controls which pages or subsections appear within a section, and in what order.
Open Path Logic on a section → Randomiser tab.
For randomising blocks on a single page, see Page randomisation.
The three modes in a section
Section titled “The three modes in a section”| Mode | Participant experience |
|---|---|
| No randomisation | All pages (or subsections) in builder order |
| Randomise order | All pages/subsections, shuffled per participant |
| Present a subset | Only K pages or subsections from the pool |
See Randomisation modes for detailed explanations.
Pages vs subsections
Section titled “Pages vs subsections”When randomising a section, the target is either pages or subsections — not both in the same section.
| Target | Randomises among | Internal order |
|---|---|---|
| Pages | Pages placed directly in the section | N/A |
| Subsections | Child subsections | Pages inside each subsection keep builder order |
Rules:
- Use subsections when each condition is a multi-page flow grouped together
- Use pages when each condition is a single page (or you don’t need nesting)
- Requires at least two pages or two subsections to randomise
- Do not mix direct pages and subsections in one randomised section
When to use section-level randomisation
Section titled “When to use section-level randomisation”- Between-subjects flows where each participant gets a different page path
- Large studies split into modules where only some modules are shown
- Multivariate designs with one page (or subsection) per condition
- A/B tests where Group A sees Page A and Group B sees Page B
Randomisation groups in a section
Section titled “Randomisation groups in a section”When Present a subset is enabled (especially 1 of N), enable Randomisation groups to:
- Create or select a randomisation variable with named groups
- Map Group A → Page A, Group B → Page B, etc. (or to subsections)
- Store group assignment on each response for analysis
Without randomisation groups, subset mode uses anonymous random sampling — see Study groups.
Managed display rules appear on each target page as read-only panels in Display Logic.
Section structure tips
Section titled “Section structure tips”- Keep the Thank you page outside the randomised section
- Place screeners and instructions before the randomised section (fixed order)
- Put shared follow-up questions after the randomised section so all groups answer the same closing items