Aaron wants to study the association between sleep deprivation and the number of hours spent on computer every day. he is not keen to establish causation, but would like to determine whether and how the increase or decrease in one variable is associated with the increase or decrease in the other variable. which of the following research methods is likely to be most effective for aaron’s study? (a) experimental research(b) correlational research(c) case study(d) survey

the correct answer is B. Correlational research

Explanation: Correlational research is a type of non-experimental investigation method, in which a researcher measures two variables, understands and evaluates the statistical relationship between them with no influence from any extraneous variable.

every society, in order to meet the needs of it's people, has to answer three basic questions:

- what should we produce?

- how should we produce it?

- for whom should we produce it?

this questions must be answered in order to, option b, aid in production decisions.

every country can't produce everything, no matter how rich their land is. it may be a matter of technology, resources or geographical conditions. so, these three questions must be resolved in order to get the most of the production of each land.

hope this !