Do students who hand in quizzes early score better?
Haven’t you ever wondered? Some students turn in their quizzes in half the time of the others. Do they know all the answers or are they the no-hopers who give up go home? Out of curiosity I preserved the order quizzes were submitted during grading. The data are ploted here: regression. (Note: the quiz was out of 30 points.)
There is a hint of a correlation, but it’s not very impressive. Of course, it’s only one quiz. Anyone tried the same experiment?