Library · Traffic · How to run this
Rockerbox path-holdout lift is not Northbeam geo-holdout lift
Score lift $ against holdout spend $ and control $ on one Rockerbox path-holdout cut. That score is RB path-inc ROAS.
Pair: Incrementality holdout on Traffic. Northbeam twin: geo-holdout. Halo twin: halo gap.
What you type
Holdout spend $ — Media $ in the Rockerbox path-holdout / test cell for the cut.
Lift $ — Measured incremental revenue $ vs the control design on that path-holdout cut.
Control $ — Control cohort revenue $ in that same Rockerbox path-holdout cut.
RB path-inc ROAS = lift ÷ spend. Lift vs control % = lift ÷ control × 100. Soft RB path-inc ROAS usually means path-holdout map lag — chase that seat; never invent a lift chip.
What not to do
Never invent lift $ or RB path-inc ROAS. Never paste a Northbeam geo-holdout file into Rockerbox path-holdout fields. Never fold halo-vs-direct or assisted share into path-holdout lift. Never mix holdout spend from one week with control revenue from another.
Related: Traffic, Northbeam geo-holdout, halo gap, assisted share.
Procedure
- Type holdout spend $, lift $, and control $.
- Read RB path-inc ROAS and lift-vs-control %.
- Bid on path-holdout ROAS when RB path-inc ROAS is the trusted book.
Failure modes
- Inventing RB path-inc ROAS or lift $.
- Dumping a Northbeam geo-holdout file into Rockerbox path-holdout fields.
- Folding Rockerbox halo-vs-direct or assisted share into path-holdout lift.
Worked example
None on this page yet. When one lands it will be a real case: what broke, the number, and what changed. Not a composite.
Glossary
- RB path-inc ROAS
- Lift $ ÷ Holdout spend $. Lift vs control % = Lift $ ÷ Control $ × 100.
Work with us — We run this job on your accounts. Services
FAQ
- Is this Northbeam incrementality holdout?
- Different holdout export. [Incrementality holdout](/manuals/northbeam-incrementality-holdout) reads Northbeam geo / audience holdouts. Here you only score Rockerbox path-holdout lift against Rockerbox holdout spend and control $.
- Is this Rockerbox halo-vs-direct gap?
- Sibling Rockerbox attribution door, not path-holdout lift. [Halo-vs-direct gap](/manuals/rockerbox-halo-vs-direct) is |halo − direct| ÷ direct. This page is holdout spend vs measured lift $.
- What lift $ should I invent?
- None. Type holdout spend $, lift $, and control $ from the same Rockerbox path-holdout cut.