please read the attached article and answer the questions and make sure the answers should not be brief answers.
1) What is the problem statement of the article? P.S a problem is not a purpose or objective
2) What is the significance of the research? P.S significance should not come from this research's outcome
3) What do you think about the adequacy of the research methods? Please explain. method adequacy should not come from the research result
4) Is the research outcome convincing? Please explain.