is it true that you will get easy questions by taking GMAT at thebeginning of the month ?

I have heard it from friends who took it at the beginning of the month and who scored high. And from a friend who scored low at the end of the month. no one can say for sure if you will get easy questions if you take GMAT test at the beginning of the month or a tougher test at the end of the month. It is based on your ability and the way you take the test. But its always to be on safe side and take the test towards the beginning of the month. Also we just checked while booking exam dates that most of the dates in the starting of the month are already taken well in advance for 3-4 months. So obviously there is a pattern there and people prefer to take it at the beginning of the month. so better to follow the same :)