public double getAverageEasiness() {
double totalEasiness = 0;
Collection<Student> students = StudentManager.instance().values();
for (Student student : students) totalEasiness += student.getEasinessFor(this);
return totalEasiness / students.size();
}
public double getAverageResponseTime() {
if (timerReviews == null) {
timerReviews = new ReviewList();
for (Student student : StudentManager.instance().values()) {
if (student.getGradingGroup() != GradingGroup.SCORE) continue;
ReviewList tempList = student.getReviewsClone();
for (int i = 0; i < tempList.size(); i++) timerReviews.add(tempList.get(i));
}
}
return timerReviews.getFor(this).getAverageResponseTime();
}