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seropon [69]
3 years ago
9

In an experiment, one group of children is given a drink each day with a special vitamin supplement. A second group of children

is given the same drink but without the vitamin. Later, all children are given an IQ test to see if the vitamin had an effect on intelligence. In this experiment, the children’s scores on the IQ test would be the____________.
Social Studies
1 answer:
Ymorist [56]3 years ago
3 0

Answer:

Control variable

Explanation:

During the conduction of experiments for research, a control variable is introduced as a variable the researcher conducting the experiment holds as a constant. It is neither the dependent variable nor the independent variable, but it is something that affects the outcome thereby making it important. Control variable and controlled variable are two different things as the latter is another name for independent variable.

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Five things Europeans needed to find a new route to Asia​
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Answer:

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Since the Portuguese were at peace and not locked in war the way France and England were, they became the first to accept the challenge of sailing uncharted waters, thanks to Prince Henry, who became known as Prince Henry the Navigator. Though Prince Henry did not sail himself, he made it possible for others to do so. He set up a center for exploration where interested people could share their knowledge of geography. Here they learned all they could about maps and navigation, including the use of the magnetic compass and the astrolabe. Portuguese shipbuilders developed a new kind of ship called a caravel, which could sail into the wind as well as with the wind. Armed with this knowledge, Portugal led the way. During the 1440s, brave sailors set sail and explored the African coast farther than ever before. In 1488 Bartholomeu Dias managed to sail around the southern tip of Africa, only to turn back because the crew was afraid to continue. Ten years later, Vasco da Gama completed the voyage around Africa and on to India. These accomplishments paved the way for others to explore and reach the riches of Asia. Even more important, Prince Henry’s sailors overcame the fear of the unknown and led the way for others to turn westward to the Atlantic and the Americas, where eventually the small settlement of Jamestown would be born.

Explanation:

5 0
3 years ago
Which type of research study would best be used to determine how aggressive children are while playing at a schoolyard during re
skad [1K]

Question

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a. confounding

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e. experiment

Answer:

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Explanation:

Naturalistic research as opposed to analog research is reasearch whereby a subject is observed while subject is in his natural habitat and free of manipulation. This is illustrated in the example above where aggressive children could be observed while in their school playing ground. This would leave the subject oblivious of the observer and therefore subject would be his natural self.

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Answer:

A

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