5. The method of claim 4 , wherein failing a trial comprises the student making an incorrect selection, the method further comprising: if a trial is failed, repeating the trial until: the trial is passed; or the trial has been failed a specified number of times.
5. The method of claim 4 , wherein failing a trial comprises the student making an incorrect selection, the method further comprising: if a trial is failed, repeating the trial until: the trial is passed; or the trial has been failed a specified number of times. 8. The method of claim 5 , further comprising: if the trial in stage 1 is passed or has been failed a specified number of times, performing trials in stage 2 directed to the stimulus passage.