I assume your question is why does he have to leave the room before the final discussion?
Well, he might have, as an active member of the IRB, a conflict of interest, meaning that he could be biased to vote in favor of his work which is incorrect, as researchers need to be objective regarding what they are studying. The National Academy Press. (2009). On being a scientist: Responsible conduct in research (3rd ed.). Washington, DC: Author. Is a great book you might read to understand the duties of any IRB and its members responsibilities, also the researchers' behavior. On it, is detail why a conflict of interest can guide to the decision of not conducting a certain research, independently of the undeniable reputation of Dr. Jones.
The amswer is c if im not wrong
The answer is "Experimental research".
Experimental research refers to any research led with a scientific approach, where an arrangement of variables are kept steady while the other arrangement of factors are being estimated as the subject of test.
The most straightforward case of an experimental research is leading a laboratory test. For whatever length of time that examination is being directed under logically satisfactory conditions – it qualifies as a trial explore. A genuine experimental research is thought to be fruitful just when the scientist affirms that an adjustment in the dependent variable is exclusively because of the control of the independent variable.
Answer: C. foreign goods to be more expensive to residents of foreign nations
Explanation: When the dollar price rises in a country that the official currency is not the dollar, purchase of foreign goods becomes expensive.
For example, if in a country like Nigeria, 1 dollar equals 360 Naira and a resident has been purchasing goods outside Nigeria using the dollars, if 1 dollar increases to 400 naira, that becomes more expensive for the Nigerian (foreigner). Because the Nigerian now have to cough out 400 naira for 1 dollar as against the for 360 naira for 1 dollar.
