"What are the sleeping habits of SHS student in Parang High School?"

What quantitative research design is best used for the above question?

What quantitative research design is best used to the statement below?

"The impact of service quality on customer satisfaction of Goldilocks."

What quantitative research design is best used for the research question below?

"Is there a relationship between phone brand and Facebook usage among teens?"

It is a data gathering strategy used by an individual to gather first hand data on programs, processes, or behavioral being studied, it is a way of collecting a primary source of information, like watching and listening to an interaction or phenomenon, issues or realities as it takes places. 

A written list of question often use of checklist and rating scale which respondent fills out or answers and give back to the researcher.

It attempts to determine a cause and effect relationship between two or more variables.

Is a method for collecting information about people-their thoughts, behaviors, opinions, concerns, or aspirations.