What is user engagement and how was it determined that it increased by 20-30% due to your targeting system?

User engagement is a measure of user activity and interest in the product. It can be measured through metrics such as time on site, number of sessions, depth of viewing, conversions, etc.

To determine that a 20-30% increase in engagement is specifically related to your targeting system, A/B testing or experimental design is used. For example:

• Divide users into two groups: control (without targeting) and experimental (with targeting).
• Compare key engagement metrics between the groups.
• If a significant increase of 20-30% is observed in the targeting group, it can be confidently linked to your system.

It is also important to control external factors and conduct statistical analysis to exclude random coincidences.