1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
melisa1 [442]
3 years ago
6

Scientists have found that it's always best to have a control group. Why? Let's say you are measuring whether drinking soda make

s people smarter. You get a bunch of kids who don't drink soda, and give them a test. Then you have them drink lots of soda for a few weeks and have them take a similar test. You notice that their scores have gone up. Wow, did you just prove that soda makes you smarter? Not exactly. It could be that those kids had been studying on their own, or learning stuff in school that helped them on the test. A better experiment has a control group. In this case, it would be a second group of kids from the same place whom you test but who don't drink the soda. If their scores don't go up, then you've just figured out that soda is the real cause.
Which of these would provide the best evidence that drinking soda makes people smarter?
A
The soda-drinking group does not show improved scores while the control group does.
B
The control group’s scores do not improve while the soda-drinking group’s scores do.
C
Both the control and soda-drinking groups scored exactly the same on the second test.
D
The control group scored higher than the soda-drinking group on the first test.
History
1 answer:
zhenek [66]3 years ago
4 0

Answer:

b is correct since their grades/scores inprove.

You might be interested in
What were the causes and consequences of the wall street crash??
goblinko [34]
Financial experts warned the public the the American Economy is slowing down. With this warning in mind, investors started selling their shares in large numbers in September 1929. By 24th October 1929, 12.8 million shares were sold and another 16 million shares were sold at a very low price on 29th October 1929. The panic selling of shares lead to the collapse of the stock market in New York.

The aftermath of the wall street crash was very disastrous. Investors lost their money and was not able to pay off their debts. Many banks closed, leaving their depositors with no money nor hope for the future. Ordinary people lost their means to buy foods and other basic needs like shelter and clothes. Companies have to downsize resulting to firing of redundant workers and lowering the wages of the remaining workers. Unemployment rose to very high level.

The Wall Street Crash led to the beginning of the Great Depression in the 1930s.

8 0
3 years ago
What might explain why the Dutch believed that they had more of a claim on Manhattan Island than the British?
Anna35 [415]

Answer:

A. The dutch bought the land

Explanation:

6 0
1 year ago
How effective were unions in shaping political and economic policies?
Darina [25.2K]

Unions were very effective in shaping political and economic policies. Even though their initial efforts did not have success in the late 19th century, their 20th century efforts changed America forever.

For example, the labor unions were able to get the government to pass laws regarding the 8 hour work day, the outlawing of child labor for kids under the age of 16, and the implementation of health and safety regulations to ensure that factory workers were in suitable conditions. Along with this, there are now federal agencies that to this day, continue to monitor businesses and their activities to ensure that they are not breaking any labor laws or health and safety regulations.

8 0
3 years ago
Select the correct answer from each drop-down menu.
antiseptic1488 [7]

Answer:

1.propert

2.owners

3.richer

Explanation:

7 0
3 years ago
Read 2 more answers
When Luther traveled to South America, he visited many different countries and experienced a variety of cultures. He tried diffe
MrRissso [65]

Answer:

A) Cultural relativism is the correct answer.

Explanation:

The idea that a person's  values, practices and beliefs should be understood in context of their culture instead of judging them against the criteria of another. Franz Boas was the first person to use it in anthropological research and later his students popularised it, but he didn't coined the term. This term was first used by social theorist Alain Locke in his book Culture and Ethnology

3 0
3 years ago
Other questions:
  • The Supreme Court may choose to remand a case, which means that __________. 
    6·2 answers
  • What did theodore roosevelt do to protect the nation's natural areas?
    9·1 answer
  • What society invented the architectural structures of the arch, the vault, and the dome?
    13·2 answers
  • . List 4 things you saw in the movie that demonstrate Rome's reach beyond the city of Rome itself. In other words, what are some
    11·1 answer
  • Which part of the these acts is still in effect? Alien Act Sedition Act Alien Enemies Act Naturalization Act
    10·2 answers
  • 12.
    6·1 answer
  • The leaders of what 2 countries are depicted in the drawing?
    13·1 answer
  • Why might someone choose a non-FDIC insured<br> account type?
    5·1 answer
  • If there were 20,528 voyages made by ships and 12 million slaves, how large was the average human cargo aboard a ship?
    14·1 answer
  • Washington’s crossing the Delaware River led to which successful military engagement?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!