The Sprint Retrospective Action Item Completion measures how well the team follows through on the action items they identified and committed to during the sprint retrospective. It helps the team assess their responsiveness to improvement opportunities and their ability to make meaningful changes. A higher completion rate indicates the team's dedication to continuous improvement. Measuring this metric can be beneficial for new Scrum Teams; however, as they take ownership of continuous improvement and act on Retrospective Action Items, its significance decreases.