Home | How It Works | Stats Login | Register         Case: Tasks and Pre-Tests In Mrs. James class, she gives Tasks and pre-tests to her students before every unit. At the end of completing the task and pre-test, she notices that the students performed differently on the assignments that covered the same skills. She wants to use the data to form her groups. Should she use the data from both assessments or just one. How will she know which to choose from? Solution: (Rates are posted for this solution!) She should use all the possible data she has to pull from when forming the groups.