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measurement

media buying

Check an experiment’s assignment counts before reading its uplift

An experiment can produce an attractive uplift while its assignment counts contradict the intended split. A reproducible illustrative example with editable inputs and explicit limits.

Isaac Turner

2 min read

Check an experiment’s assignment counts before reading its uplift
Put a Wilson interval beside a small retention estimate

measurement

media buying

·

2 min read

Put a Wilson interval beside a small retention estimate

Show how a UTC event crosses a reporting-day boundary

measurement

media buying

·

2 min read

Show how a UTC event crosses a reporting-day boundary

Reconcile gross purchases and refunds without moving the cohort

measurement

media buying

·

2 min read

Reconcile gross purchases and refunds without moving the cohort

Find repeated purchase records before reporting revenue

measurement

media buying

·

2 min read

Find repeated purchase records before reporting revenue

Separate payer concentration from average revenue per payer

measurement

media buying

·

2 min read

Separate payer concentration from average revenue per payer

Hold segment weights fixed when a blended retention rate moves

measurement

media buying

·

2 min read

Hold segment weights fixed when a blended retention rate moves

Bound a conversion share when some outcomes are unknown

measurement

media buying

·

2 min read

Bound a conversion share when some outcomes are unknown

Remove immature installs from a D7 retention denominator

measurement

media buying

·

2 min read

Remove immature installs from a D7 retention denominator

Measure how much an event table changed after the first snapshot

measurement

media buying

·

2 min read

Measure how much an event table changed after the first snapshot

Spot a repeated revenue total after a one-to-many join

measurement

media buying

·

2 min read

Spot a repeated revenue total after a one-to-many join

Compare acquisition cost at the install and qualified-player stages

measurement

media buying

·

2 min read

Compare acquisition cost at the install and qualified-player stages