Proficiency is accuracy over time; this is a growth measure and indicator of long-term retention.
To view class proficiency --
Choose CLASSES from the blue ribbon.
Choose the class from the left column you wish to view.
Choose Mixed Review from the middle column.
Click on the Manage Columns icon on the right.
Choose the columns you wish to add to your report.
To determine which students are proficient, choose a skill and click PROFICIENCY or click on the percentage. GMM groups your students based upon their proficiency.