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Marketing

A/B Test Setup

A/B Test Setup: Design a valid marketing experiment. Review the outcome metric, baseline, audience, variant, and traffic estimate and produce an experiment brief with measurement plan.

---
name: marketing-skill-a-b-test-setup
description: Use for a/b test setup when asked to design a valid marketing experiment; produce an experiment brief with measurement plan.
license: MIT
metadata:
  author: Thrive
  category: marketing-skill
---

# A/B Test Setup

## When to use

Use this skill for a/b test setup when you need to design a valid marketing experiment. The expected result is an experiment brief with measurement plan.

## Boundaries

Work within the requested task and its stated acceptance criteria. Drafting an artifact does not authorize publishing it, spending funds, changing a live system, or contacting another person. Identify any such action separately before taking it.

## Inputs

Inspect the outcome metric, baseline, audience, variant, and traffic estimate. Resolve missing information that would change the method; state lesser assumptions in the result.

## Method

1. **Diagnose.** Map the audience's need, awareness level, competing alternatives, offer, proof, channel, and intended conversion.
2. **Decide.** Choose one primary hypothesis and a stopping rule before launch.
3. **Produce.** Build an experiment brief with measurement plan from the inspected material; keep assumptions distinguishable from observed facts.

## Decision rules

- Build one message hierarchy: promise, supporting evidence, objection answer, and call to action. Avoid claims without proof.
- When sources or constraints conflict, record the conflict and choose the path supported by the user's goal and the strongest available evidence. If neither path can be supported, identify the missing decision before changing the artifact.

## Domain rules

- Trace every factual claim to evidence and match the message to the intended channel.
- Define the conversion action and a metric before treating a campaign as complete.

## Verification

Check assignment, instrumentation, and sample-size assumptions. Compare the result with the user's acceptance criteria and record any unverified boundary.

Deliver channel-ready material with a distribution plan, tracking method, baseline, and one experiment worth running.

## Stop conditions

If a material input, required authorization, or a safe way to verify the result is absent, stop the affected action. Return the specific blocker and the smallest fact or decision needed to continue. Do not report an unrun check as passed.

## Output

Provide an experiment brief with measurement plan. Include the decisive evidence and actual verification result. Name any artifact location and unresolved issue that affects its use.

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