mothodology

please read the article below carefully and answer these questions:

http://pdf.thepdfportal.net/PDFFiles/110085.pdf

How would you summarize the main point of this article? (1 point)
What is the methodology for this research? what are its shortcomings, if any? (6 points)
Applying what you have learned in this course so far, what is your critical evaluation of the author's argument? (3 points)

Let me know if you have any problems opening the link. 

extra.pdf file is reading file that you should read to write it..

and i will upload two examples file.

plz write it very well following the questions!!so that i can get 10 points all!!!