Can you help me with this problem? Thank you.

(Obj. 3.8) A class of students takes a true/false test with 100 questions. A few weeks later, a similar true/false test with 100 questions is given to the same group of students. Students' with the highest scores on the first test had a lower average on the second test and the students' with the lowest scores on the first test had a higher average on the second test. Should this concern the administrators? Explain