UCL Moodle Guides
E-Learning services for staff
Quickscan Dyslexia Screening Tool
Moodle Assignment - you release marks and feedback when you're ready.
Turnitin Assignment - you set a Post Date at the Setting stage; marks and feedback are automatically release then.
Quiz - you can either specify when the marks and feedback should be released, or release them when you're ready.
Moodle Workshop - you release peer marks and feedback to students when you're ready.