Answer: alternative D.
Explanation: Dr. DeVries should choose his sample population randomly in order for his research to be representative, even having a specific population, which is high school seniors, that he wants to study. By <u>choosing specifically students from an exclusive college preparatory school, he isn't considering how students from other schools might perform in his research test</u>. This would be a very important step for him to understand how the practice in problem solving affects the ability related to it. Otherwise, he will have a distorted result.
I believe the answer is: semantic encoding
Semantic encoding refers to putting the core meaning of a certain words, phrase ,or picture in our memory rather than only putting the sound or how those things look like. The experiment concludes that memories that acquired through semantic encoding would stay much longer compared to normal method.
Answer:
It's because Douglass regarded the Civil War as the fight to end slavery, but like many free blacks he urged President Lincoln to emancipate the slaves as a means of insuring that slavery would never again exist in the United States.
Answer:
All of them. :)
Explanation:
Or, the household controls all factors of production, which are land, labor and capital. :)