Astudy by rosenthal and jacobson (1968) involved telling teachers that some of their students were "bloomers" and would achieve rapid academic success within the next year. in fact, these students were no different than any of the other students in the class. at the end of the year, the "bloomers" showed more gains in iq than the other students. it appeared that the teacher had unintentionally treated the "bloomers" in special ways. this is an example of which of the following? a. observer bias b. observer effects c. a masked study design d. self-report operationalization

I think the it would be A. Observer bias i think

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.

both focus ón people who behave in a risky way and çause accídeñ both explaín how to púrchase insurance añd cover the costs of premium. both describe what happened when consumers fail to pay their premíums in time