Variant B
Digital service reminder
A resident receives a short reminder before a deadline. The copy emphasizes certainty, not urgency.
- One exposure event
- Randomized variant label
- Downstream recall probe
Displayed as a respondent stimulus block.
Composition
Survey components plus experiment logic
Use form questions when they are enough. Add randomization, repeated choice tasks, timers, payoff logic, stimuli, and exports when the project outgrows survey forms.
Try the building blocks
These are live respondent primitives. Click, type, drag, reveal, and switch branches; the captured value updates beside each component.
Survey captureChoiceButtons
Single choice, multi-select, screening, consent checks.
Captured value
panel_app
Survey captureDropdownSelect
Bounded profile fields and compact categorical answers.
Captured value
hdb
Survey captureTextInput
Open-ended probes, IDs, numeric fields, dates, and explanations.
Captured value
The instructions were clear, but I would like more examples.
60/180
Survey captureLikertScale
Agreement, confidence, trust, satisfaction, and attitude items.
Captured value
5
Strongly disagreeStrongly agree
Survey captureMatrixQuestion
Multi-row batteries with one answer per row.
Captured value
{"clear":"agree","fair":"neutral"}
| Disagree | Neutral | Agree | |
|---|---|---|---|
| The message is clear | |||
| The policy feels fair | |||
| The source is credible |
Survey captureSlider
Continuous WTP, probability, intensity, and confidence capture.
Captured value
62
0100
62
Survey captureRankingTask
Drag-and-drop rank order for priorities, messages, or concepts.
Captured value
["speed","quality","cost"]
1
Faster field setup
Reduce launch time
2
Cleaner respondent data
Fewer invalid rows
3
Lower manual effort
Less analyst cleanup
Survey captureNpsScale
0-10 recommendation and satisfaction scores.
Captured value
8
Not likelyVery likely
Survey captureSemanticDifferential
Brand or concept perception between bipolar anchors.
Captured value
{"simple_complex":3,"safe_risky":5}
SimpleComplex
SafeRisky
Choice and product researchMaxDiff
Best-worst priority sets for messages, features, or interventions.
Captured value
{"best":"speed","worst":"handoff"}
Most valuableLeast valuable
Faster launch
Go from brief to link quickly
Clean exports
Analysis-ready CSV fields
Client preview
Review before publishing
Choice and product researchPackageChoice
Bundle, plan, concept, or proposition selection without public pricing.
Captured value
guided
Choice and product researchConstantSum
100-point allocations for feature importance or resource split.
Captured value
{"reliability":40,"speed":35,"reporting":25}
Allocate 100 total0 points left
Choice and product researchConceptCard
Stimulus exposure before downstream choice or open-ended probes.
Choice and product researchContextTable
Scenario facts and comparison tables with selectable row details.
| Option | Coverage | Handoff |
|---|---|---|
| A | Survey only | CSV |
| B | Survey + logic | CSV + event fields |
Click row B to inspect the detail panel.
Choice and product researchStimulusImage
Image, ad, mockup, or visual treatment display.
Lab-style experiment primitivesPriceList
MPL / switch-row risk or threshold elicitation.
Captured value
AAB__
Choose A or B in every row
One row can be selected later for incentive calculation.
| # | Option A | Option B |
|---|---|---|
| 1 | 20% chance of 40, else 20 | 20% chance of 80, else 0 |
| 2 | 40% chance of 40, else 20 | 40% chance of 80, else 0 |
| 3 | 60% chance of 40, else 20 | 60% chance of 80, else 0 |
| 4 | 80% chance of 40, else 20 | 80% chance of 80, else 0 |
| 5 | 100% chance of 40, else 20 | 100% chance of 80, else 0 |
Lab-style experiment primitivesBudgetLine
Clickable allocation under a budget constraint.
Captured value
{"x":40,"y":60}
Private: 40Public: 60
Lab-style experiment primitivesLotteryBox
Lottery visualization with selectable outcomes.
Captured value
30
35%
45%
20%
Low outcome35% chance
Middle outcome45% chance
High outcome20% chance
Lab-style experiment primitivesPayoffMatrix
State-contingent payoff table shown inside a decision page.
| Option | Low demand | High demand |
|---|---|---|
| Safe option | 35 | 35 |
| Risky option | 10 | 70 |
Lab-style experiment primitivesRevealPanel
Click-to-reveal information acquisition with event logging.
Captured value
false
Lab-style experiment primitivesAIRecommendationReveal
Precomputed AI advice treatment with reveal tracking.
Captured value
false
Lab-style experiment primitivesExperimentTimer
Timed exposure, countdowns, and timeout events.
Captured value
—
00:45
Runtime logicDisplay logic
Conditional components driven by prior answers, treatment, and URL params.
Captured value
benefit
Runtime fields
- url.pid
- P-1042
- treatment
- benefit
- visible_page
- main_frame
- round
- 1
Operational handoffCompletion code
Panel reconciliation field generated at completion.
Captured value
yes
Generated handoff
EXP7K2
Stored with session status and URL params.