expository paper (8 pages exclude reference page, no need of cover page, at least 15 references citation)

 Write an expository paper explaining a well-designed research study which includes quantitative analyses. The paper should include an introduction and conclusion, a references section, and direct & indirect citations. Use of appendices is optional. Use APA Format throughout. The body of the paper may be organized in any logical way, but it should (at a minimum) discuss these aspects of quantitative design: 

• contextualization
   
• methods of data collection and sampling
   
• critical statistical concepts influencing analyses
   
• validity & reliability
   
• practical significance