Which of the following would be most useful in measuring how many days passed between the first visit to a site and the eventual conversion?
- Path Length
- Time Lag
- Conversion Value
- Top Conversion Paths
- Assisted/Last Interaction Conversions
Explanation: The Time Lag report counts the number of days from the first user interaction (e.g., impression, click, direct session) to conversion. Some Analytics users like to compare this report with the Ecommerce > Time to Purchase report, which counts the number of days from the first campaign referral to conversion. Given the different starting points for the two timelines, the reports do not match.
Read more here: https://support.google.com/analytics/answer/1191209?hl=en