Experiment modal
Hypothesis · instrumentation · rollback

Experimentation

Test that idea with guardrails

Hypothesis in. Instrumented test with rollback out.

The category

Arvad designs sample size, instrumentation, and rollback in the same workspace so the readout is a decision you can act on, not only a dashboard screenshot.

  • Plain-English hypothesis becomes variants, metrics, MDE, and sample size.

  • Variant code ships as a PR behind GrowthBook or Statsig flags.

  • Guardrails on revenue, latency, and errors, with auto-rollback on breach.

  • Sequential analysis and a plain-English decision memo on the same build record.

The gap

Why experimentation stays a slide in a deck

Everyone wants to be data-driven. Few teams have spare capacity to run rigorous tests.

Most

Most product teams never run an A/B test

Designing a rigorous test loses to shipping.

Hard

Statistical validity is hard

Sample size, power, MDE, peeking. Wrong tests create confident wrong decisions.

Risk

Eng leads veto prod experiments

Without guardrails, a bad variant can hurt revenue quietly.

Glue

Flags exist; the rest is glue

Flags platforms do not write variants, instrument metrics, or design rollback.

The whole loop, not only the flag

The experimentation pipeline most teams never finish, wired into GrowthBook or Statsig.

Hypothesis → design

One-line hypothesis becomes variants, primary/secondary metrics, MDE, sample size, duration.

Stays in the workspace with plan and checks

Variants written for you

Variant B as a real PR behind the flag, with metric instrumentation.

Stays in the workspace with plan and checks

Statistical rigor

Bayesian and frequentist methods, sequential testing, multiple-testing correction.

Stays in the workspace with plan and checks

Segmentation

Stratified randomization by plan, geography, device, signup date.

Stays in the workspace with plan and checks

Guardrails

Revenue, latency, error rate, and KPIs you pick. Cross a guardrail and auto-roll back.

Stays in the workspace with plan and checks

Rollback

Every experiment ships with a tested rollback path before go-live.

Stays in the workspace with plan and checks

Results in plain English

Decision memo: what shipped, what moved, what to do next.

Stays in the workspace with plan and checks

GrowthBook & Statsig

Bring GrowthBook or Statsig. Arvad designs, writes, and analyzes; flags stay where your data team trusts them.

Stays in the workspace with plan and checks

DIY experiments vs Arvad

CapabilityDIY experimentationArvad experimentation
Time to first experimentWeeksDays
Variant codeEngineering ticketPR behind a flag
GuardrailsOptionalRequired, with auto-rollback
StatsAd hocSequential, multi-test-corrected
Reportp-values in SlackPlain-English decision memo
PlatformYou build glueGrowthBook / Statsig native

Hypothesis Monday. Result when the data says so.

Write one line, approve the design, ship instrumented variants behind a flag, decide from a memo.

Hypothesis to decision memo, end to end01 / 04

WRITE

YOUR

HYPOTHESIS

WRITE

One line, plain English. “I think a softer CTA on the pricing page will lift trial-starts.” Arvad turns it into a structured proposal you can edit, no template, no PhD required.

Plain English in
Structured proposal out
Editable on the spot
No template
Scroll

What makes eng leads comfortable

All

Every variant ships with a tested rollback

Rollback path tested before go-live.

Sequential

Sequential analysis

Call the test when the data supports it.

≤ SLA

Latency guardrail

Breach triggers auto-rollback.

2

Two platforms on day one

GrowthBook and Statsig.

Straight answers

Limits stated plainly. No demo theater.

One question

When the build finishes, can you show a teammate the plan, preview, tests, and deploy status without digging through chat?

If you cannot, you still have a chat log. Arvad keeps that work in one workspace.

Ship the experiment. Keep the readout.

Hypothesis, variants, guardrails, and decision in one place.