I Dont understand this at all...10 point question?

Question

http://www.urbancentre.utoronto.ca/pdfs/researchbulletins/CUCSRB33BourneFeb07.pdf

i've read this 5 times and i still dont understand one bit of it, could you explain it in a paragraph for me?

10 point question

Answer 1

Hah! That is to long for me to read for 10 points, and is a waste of my time

Answer 2

I don't know, I cant read it since my computer is 2 slow

Answer 3

nope....beats me!