For this initial post, using what you have learned from the text, as well as any other sources, you may find useful (including the articles in the Required Resources), analyze and evaluate the methodology of both studies—Quinn et al. (1999) and Zadnik et al. (2000)—and how methodology affected the differences in the conclusions the researchers arrived at.

Address these requirements in your initial post:

Which of the studies do you find more persuasive
Explain why you found one of the studies more persuasive. For example,
How each of the studies was designed? Were the studies generalizations, causal studies, or comparative studies?
How did the designs differ, and why did they yield entirely different results?
How was data collected?
What were the variables in each study?