Optimize
1K members online now
1K members online now
Understand the information in your Optimize reports and in your Google Analytics reports.
Guide Me
star_border
Reply

How long do experiments run?

Follower ✭ ✭ ☆
# 1
Follower ✭ ✭ ☆

I know the max is 90 days (unless ended by user).

 

Will an experiment end if the -- say -- the "probability is best metric" reaches a certain level? Or does it just run for 90 days/until you stop it? 

 

Given the traffic/sessions for a site, it doesn't seem like it would always be necessary to run the experiment for 90 days to get a statistically significant answer. 

1 Expert replyverified_user

How long do experiments run?

Follower ✭ ☆ ☆
# 2
Follower ✭ ☆ ☆

I would like to know this too!

How long do experiments run?

Google Employee
# 3
Google Employee

An experiment will run 90 days unless you stop it, even if the "probability is best metric" reaches a certain level. You are right, it may not be necessary to run the experiment for the full 90 days if the experiment data indicates there is a clear leader. The decision to end the experiment before the 90 days is up to the user who may take in to consideration other factors than just the statistical results.

How long do experiments run?

Follower ✭ ✭ ☆
# 4
Follower ✭ ✭ ☆

Total 10K session or 1 month test duration is OK