A / B Testing / Conditional LTI Module Assignment

[zachberry]

Feature request to split students into groups when starting an Obo LTI launch. So for example, one LTI assignment link could conditionally send students to one of two modules.

Either students are randomly selected to a module, optionally that decision is stored, or hardcoded lists are provided to determine which module to send students to.

This feature may not be implemented natively in Obojobo, but still marking an issue here for when our system supports this.

[zachberry]

One idea is to define this in the LTI url that you'd give the LMS - something like /launch-a-b?a=000000&b=000000. Then we can either add a new table to keep track of which student went where, or, dig into the launches table to determine which of the two possibilities has lesser visits and send them there.

[zachberry]

In order to avoid creating another database table we have a quick algorithm:

• When a user goes to an A/B link, check the user create_at time. If it's odd, send them to path A, if even, to path B
• With one exception. Check the create_at time of the draft. If it's odd, flip the paths above. This way a user won't always be sent to path A, they should be reverted to path B instead on ~50% of the time they visit an a/b link.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. We do this to keep our backlog under control, but we thank you for your contributions.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. We do this to keep our backlog under control, but we thank you for your contributions.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. We do this to keep our backlog under control, but we thank you for your contributions.