Mark conducts a study for his research methods class to determine if consuming caffeine causes people to perform better on cognitive tasks. In his study, he gives half of his participants a glass of water and half of his participants a glass of cola, and then has them attempt to solve 15 math problems. He finds that people who drink caffeine beforehand solve more math problems than those who drink water beforehand. Mark decides to conduct a variation of the original study in which he measures participants' ability to solve verbal analogies as the cognitive task instead of measuring their ability to solve math problems. He finds that people who drink caffeine beforehand solve more verbal analogies than those who drink water beforehand, suggesting caffeine consumption causes improved cognitive performance. This study is known as a:

a. Statistical replication
b. Replication plus-extension (NOT ANSWER)
c. Conceptual replication
d. Direct replication

C.

Explanation:

Conceptual Replication can be defined as a procedure of repeated experimenting with different methods. The researchers in this method of experimenting performs the experiment of the underlying hypothesis with different methods to know the reliabilty of the result.

In the given scenario, Mark has performed the experiment to determine if consuminh caffeine causes people to perform better on cognitive tasks but using different methods. The reliablity of hypothesis was checked by using different methods, first, Mark experimented on maths solving method then he performed the experiment of same hypothesis with different method of solving verbal analogies.

So, the correct answer is option C.

trade regulation is a field of law, often bracketed with antitrust (as in the phrase “antitrust and trade regulation law”), including government regulation of unfair methods of competition and unfair or deceptive business acts or practices. antitrust law is often considered a subset of trade regulation law. franchise and distribution law, consumer protection law, and advertising law are sometimes considered parts of trade regulation law.

in general the theory of economics says that the more open to trade a country is the better   the result for the same country and the whole economies.

in real life countries impose taxes, quotas, etc which is not so good for the economies.

this kind of commercial war between the usa and china is slowing down the growth of the whole world so we can say that it is a draw back of trade regulations. and the free trade agreements are benefits of trade regulations.

no

explanation: