Since AdaptiBar provides you with all four OPEs that the NCBE has released, many users like to exclude these questions when in Practice Questions mode so that, when they are ready to begin simulating exams, you have yet to answer those questions. If you wish to reserve these questions while in Practice Questions mode, make sure “Exclude OPE Questions” is selected so you can simulate exam without running the risk of seeing repeat questions down the road.
NOTE: If you do wish for the algorithm to present you with these questions, make sure you uncheck this box. If the box remains checked, you will begin to see repeat questions before you have exhausted all questions within a particular subject, as the OPE questions are being reserved.