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Conversion Optimisation

Cohort Analysis

Plain English

Comparing groups of users over time.

Definition

groups users based on shared characteristics to analyse how those groups behave over time.

In practice

Used to track , , or across user groups such as signup date or acquisition channel.

In context

It is the fastest way to tell whether a product is genuinely improving. If each month's new users retain better than the last, something is working.

The reality

Requires clean and consistent , otherwise results can be misleading.

Compared with

Cohort Analysis vs Segmentation

groups users by attributes at a point in time. groups them by when they started and follows them forward. Segments compare types of user; cohorts compare of the product.

FAQ

Common questions

A few practical answers to the questions that usually come up around this term.

What is cohort analysis?

It is analysing groups of users who share common characteristics.

What is a cohort?

A group of users with something in common, such as signup date.

Why is cohort analysis useful?

It shows trends in over time.

What can you measure with cohorts?

, , and .

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