Nursing class assignment design/approach

This is assignment for my psych NP class. the following must be done, an attached document with an TWO exampleS is available in order to understand the assigment. 

MUST BE APA STYLE

ONE PAGE AT LEAST

ONE PEER REVIEW REFERENCE 5 YEARS OLD NOT OLDER.

• I must Select one research design/approach
• descriptive, correlational, semi-experimental, review, meta-analytic, descriptive-longitudinal case study, ethnographic, grounded theory, etc.) that could be used for the chosen topic 
• Elaborate on why the chosen approach is appropriate