What were the initial hypotheses for this study?

Read an article published recently(less than 5 years) on a topic of your interest.
Provide the citation and a written summary of your answers to the following questions:
What is the research problem?
What is the purpose statement?
What were the initial hypotheses for this study?
What was the study design?
Where the hypotheses rejected or accepted?
What was the overall conclusion of this paper?
Your post should be a minimum of 250-300 words.
Back up your arguments with reliable evidence.