I think that the answer is c
The expansion of Rome caused culture diffison
Answer:
qualitative research
Explanation:
Richard, a research scholar, wanted to do a research study in a subject which does not have a lot of preexisting knowledge. SO he will have to ask basic question to his research subjects in order to get an overall idea about the topic. By doing such he will be able to gain a basic knowledge about the subject he had chosen.
Qualitative research is done to obtain or which aims at expanding and gaining knowledge by asking basic question research participants related to the subjects.
Thus the answer is qualitative research.
Answer:
There is a high positive correlation between sleep and exam performance.
Explanation:
The concept of correlation indicates an association, that is to say, it is used for measuring how much two variables relate to each other. The 3 results of a correlational study are positive, negative, and no correlation. A positive correlation takes place between 2 variables that can increase or decrease together. In this case, the more students sleep, the better they performed at their exams.
