There are 3 options:

* No - If a previous attempt is completed, passed or failed, the student will be provided with the option to enter in review mode or start a new attempt.
* When previous attempt completed, passed or failed - This relies on the SCORM package setting the status of 'completed', 'passed' or 'failed'.
* Always - Each re-entry to the SCORM activity will generate a new attempt and the student will not be returned to the same point they reached in their previous attempt.