Plan my session
Plan a concrete work block with agenda, roles, preparation, and a copyable result artifact.
Session: Growth Experiment
The plan translates the method into a concrete facilitated work block. Your inputs flow directly into the session brief and work artifact.
Method session with 1-6. The plan uses the existing method logic and the runsheet.
RunsheetUse the session for shared understanding. Contributions are collected visibly, assumptions are aligned, and open differences remain traceable in the artifact.
The session works directly toward Experiment card. After the session, the artifact should be shareable, reviewable, or reusable.
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Phase 1: Hypothesis and card
60 minWrite the hypothesis in the format "If we do X, then Y happens because Z." Add goal metric, secondary metric, minimum effect, sample size, duration, owner, and learning goal to the card. Hint: If the hypothesis contains six sub-changes, it is no longer an experiment but a project. Reduce to one change, otherwise no learning occurs.
FacilitatorExperiment card - 2
Phase 2: Build or fake
1-5 daysChoose the minimal implementation: feature flag, landing-page variant, manual Wizard of Oz test, or email sequence. Select the fastest setup that still allows learning. Hint: If implementation takes more than five days, the experiment is too large. Consider a spike or fake door in front to test the hypothesis more cheaply.
FacilitatorResult summary - 3
Phase 3: Run it
1-3 weeksRun the experiment live. Perform a daily health check (tracking active, no crashes, no support spike). Avoid mid-check decisions on the goal metric before sample size is reached. Hint: A health check is not evaluation. Someone who checks the goal metric daily creates peek bias. Separate strictly: health is whether it works technically; evaluation is whether it works.
FacilitatorNext bet - 4
Phase 4: Evaluate
1 dayValidate results against goal and counter metrics. Decide: Double Down (scale), Iterate (adjust variant), or Kill (hypothesis rejected). Document lessons learned. Hint: A Kill decision is also valuable. The key point is what we know now that we did not know before. Without a learning entry, the experiment is wasted.
FacilitatorExperiment card - 5
Phase 5: Next hypothesis
30 minStore lessons in the knowledge base. Update hypothesis backlog: increase confidence for validated assumptions, reduce it for rejected assumptions. Plan next experiment. Hint: Backlog updates are the bridge to better learning. If lessons do not feed into later confidence scoring, the organization learns almost nothing per quarter.
OwnerResult summary - 6
Publish artifact
10 minCheck the artifact for completeness, define location, set version or status, and name review recipients.
OwnerExperiment card
Session Brief
For invitations, boards, tickets, PR descriptions, or workshop notes.
session-brief.md
Session Brief: Growth Experiment
Goal
Artifact: Experiment card
Working Question
What is the smallest intervention at the bottleneck that produces an interpretable learning result for the hypothesis within one week?
Context
Bottleneck stage and baseline; current knowledge around the hypothesis; available channels; budget per experiment; legal constraints (GDPR, advertising).
Setup
- Format: Method session
- Duration: 1-2 weeks per experiment, up to three in parallel
- Mode: Workshop or async
- Participants: One growth owner; engineer for implementation (including no-code setup if needed); data analyst for evaluation; marketing or content representative for reach experiments; reviewer for cards.
- Owner: One growth owner
- Participation mode: Team round, shared work and alignment
- Outcome logic: Finish artifact
Participation Logic
Use the session for shared understanding. Contributions are collected visibly, assumptions are aligned, and open differences remain traceable in the artifact.
Outcome Logic
The session works directly toward Experiment card. After the session, the artifact should be shareable, reviewable, or reusable.
Input
Experiment card template (hypothesis, goal metric, setup, duration, sample size, owner, learning goal), hypothesis backlog (Notion, Trello, or Linear), tracking system, Slack channel for updates.
Preparation
Fix the card format. Weekly cadence for kick-off, mid-check, and review. Kanban board with columns Backlog, Ready, Running, Evaluation, Done. Definition of done: lessons learned documented.
Agenda
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Phase 1: Hypothesis and card (60 min) Owner: Facilitator Action: Write the hypothesis in the format "If we do X, then Y happens because Z." Add goal metric, secondary metric, minimum effect, sample size, duration, owner, and learning goal to the card. Hint: If the hypothesis contains six sub-changes, it is no longer an experiment but a project. Reduce to one change, otherwise no learning occurs. Output: Experiment card
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Phase 2: Build or fake (1-5 days) Owner: Facilitator Action: Choose the minimal implementation: feature flag, landing-page variant, manual Wizard of Oz test, or email sequence. Select the fastest setup that still allows learning. Hint: If implementation takes more than five days, the experiment is too large. Consider a spike or fake door in front to test the hypothesis more cheaply. Output: Result summary
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Phase 3: Run it (1-3 weeks) Owner: Facilitator Action: Run the experiment live. Perform a daily health check (tracking active, no crashes, no support spike). Avoid mid-check decisions on the goal metric before sample size is reached. Hint: A health check is not evaluation. Someone who checks the goal metric daily creates peek bias. Separate strictly: health is whether it works technically; evaluation is whether it works. Output: Next bet
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Phase 4: Evaluate (1 day) Owner: Facilitator Action: Validate results against goal and counter metrics. Decide: Double Down (scale), Iterate (adjust variant), or Kill (hypothesis rejected). Document lessons learned. Hint: A Kill decision is also valuable. The key point is what we know now that we did not know before. Without a learning entry, the experiment is wasted. Output: Experiment card
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Phase 5: Next hypothesis (30 min) Owner: Owner Action: Store lessons in the knowledge base. Update hypothesis backlog: increase confidence for validated assumptions, reduce it for rejected assumptions. Plan next experiment. Hint: Backlog updates are the bridge to better learning. If lessons do not feed into later confidence scoring, the organization learns almost nothing per quarter. Output: Result summary
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Publish artifact (10 min) Owner: Owner Action: Check the artifact for completeness, define location, set version or status, and name review recipients. Output: Experiment card
Closeout
- Update result artifact: Experiment card
- Define location, version, and review recipients.
- Define owner, next step, and review date.
Work artifact
Pre-filled starting point based on the matching template.
work-artifact.md
Experiment card: Growth Experiment
Working Question
What is the smallest intervention at the bottleneck that produces an interpretable learning result for the hypothesis within one week?
Context
Bottleneck stage and baseline; current knowledge around the hypothesis; available channels; budget per experiment; legal constraints (GDPR, advertising).
Participants
- Owner: One growth owner
- Participants: One growth owner; engineer for implementation (including no-code setup if needed); data analyst for evaluation; marketing or content representative for reach experiments; reviewer for cards.
Input
Experiment card template (hypothesis, goal metric, setup, duration, sample size, owner, learning goal), hypothesis backlog (Notion, Trello, or Linear), tracking system, Slack channel for updates.
Template
Experiment Plan
Hypothesis
We believe that ...
Target audience
Who are we testing for?
Test design
What exactly will participants or users do?
Success criterion
We count the test as positive if ...
Risks and limits
What can the test not prove?
Decision afterward
If positive: ... If negative: ...
Owner and date
...
Completion Check
- Experiment card is complete enough for review:
- Location:
- Version / status:
- Review by:
- Next step:
Next Step
- Review result
- Mark open questions
- Schedule review or decision
Experiment Plan
View templateShort plan for hypothesis, test design, success criteria, and decision.markdown
experiment-plan-markdown.md
Short plan for hypothesis, test design, success criteria, and decision.
Experiment Plan
Hypothesis
We believe that ...
Target audience
Who are we testing for?
Test design
What exactly will participants or users do?
Success criterion
We count the test as positive if ...
Risks and limits
What can the test not prove?
Decision afterward
If positive: ... If negative: ...
Owner and date
...
- Working question, owner, and target artifact are visible.
- The result fits Experiment card.
- Track per experiment ID, date, and bottleneck tag. Store lessons learned in the knowledge base, not in archived cards. Quarterly recap includes win rate, key learning, and follow-up hypotheses.
- Open questions are noted as follow-ups.
- The next review or decision point is scheduled.