The Students in Your Class Are Presenting Their Oral Presentations

Short Answer

The students in your class are presenting their oral presentations in front of the entire class. You have heard that there are several frequently used shortcuts to judging others and are wondering if any of these are being used by your teacher.
-Jennifer has already presented two excellent reports. The report she has just presented is clearly not as good as the first two reports, yet she is given the same high grade as before. What shortcut has the teacher used in this case?