What variables have the researchers identified?

Review one of the suggested articles. What is the research problem being addressed? What variables have the researchers identified? What study design was used? How did the researchers collect and measure the data? Discuss the rationale for choosing the method(s). Discuss the validity and reliability of the instruments used.

 
"Our Prices Start at $11.99. As Our First Client, Use Coupon Code GET15 to claim 15% Discount This Month!!"