Dr. Johnson conducted a research study in which he investigated the effect of three different methods of teaching mathematics to three different classes of fifth grade students. However, one of the classes had smarter students than the other two and as a result this class demonstrated the most improvement in their mathematics scores. In spite of this problem, he concluded that the method used to teach mathematics to this class of students was the most effective. In this experiment, the intellectual ability of the students in the various classes was:

Answers

Answer 1

Answer:

In this experiment, the intellectual ability of the students in the various classes was: a confounding extraneous variable.

Explanation:

Just a quick reminder: a dependent variable is what is being studied or researched. An independent variable is the factor that is introduced or changed in order to affect the dependent variable.Extraneous variables are factors that may affect the results of a study. These variables may lead a researcher to think that there is indeed an association between the other variables in the study when, in fact, there is not. A type of extraneous variable is the confounding variable, which is connected to both, the dependent and the independent variable. A confounding variable affects the results of the study because it affects how the independent variable affects the dependent one.In the study described in the question, the confounding variable is the intellectual ability of the students. If the students in a class are smarter than the others, their results will be different. As we can see, because they did better, Dr. Johnson concluded that his method was effective. However, that may not be true. They might have done better because of the fact they their intellectual ability was already better.

Related Questions

When was the era of the Texas Republic?
A: March 2, 1836 - 1865

B: March 2, 1836 - 1850

C: March 2, 1836 - 1840

D: March 2, 1836 - 1845

Answers

Answer:

D

Explanation:

The Texas republic was from 1836-1845

Rhetoric
help pls ..

Answers

Art of public speaking can you please help me too

Voters who typically did not vote Republican, but voted for Reagan, became known as what?

Answers

Answer:

The Reagan coalition was the combination of voters that Republican Ronald Reagan assembled

Explanation:

John Jay represented ______ in
the First Continental Congress.
A. Boston

B. Atlanta

C. New York

Answers

Answer:

Explanation:

He soon become prominent in New York politics and was elected to the first Continental Congress in 1774 as a representative from NEW YORK.

gl, have a nice day!

What was one effect of the G.l. Bill

Answers

Answer:

Throughout the below segment, the effects of the given term are described.

Explanation:

Housing affordability seems to have been a lot more competitive back then. Candidates to colleges are somewhat more widely known or successful.To keep their finances safe, individuals have been granted unemployment benefits. Rather than working, millions of people effectiveness of learning and spent wisely.

Lower birth rates and advances in medical technology have contributed to the "graying of America" true or false

Answers

Answer:

I think it's true ...

I hope it's helpful for you......

Explanation:

it's true

I hope it's helpful

Match the items.The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Each numbered item is followed by a drop-down. Select the letter in the drop down that best matches the numbered item with the lettered alternatives. a. Escape conditioning b. Avoidance conditioning 1. A mosquito is biting your arm and you slap it. You are more likely to slap mosquitos biting your arm in future b 2. A mosquito is flying around you and so you slap it so that it does not bite you. You are more likely to slap at mosquitos flying around you in future

Answers

Answer:

1. A

2. B

Explanation:

Operant conditioning can be defined as an associative learning process which involves reinforcing the strength of a behavior. Thus, the outcome depends on the response in operant conditioning.

A reinforcement of a desired behavior involves the process of strengthening a positive behavior being exhibited by an individual through the use of stimulus. Therefore, making the behavior to be exhibited in the future by the individual.

1. Escape conditioning: A mosquito is biting your arm and you slap it. You are more likely to slap mosquitos biting your arm in future. An escape conditioning can be defined as a type of conditioning in which a subject such as a human learn how to avoid a stimulus that is aversive i.e the aversive stimulus is eliminated by the occurrence of the stimulus.

2. Avoidance conditioning: A mosquito is flying around you and so you slap it so that it does not bite you. You are more likely to slap at mosquitos flying around you in future. An avoidance conditioning can be defined as a type of conditioning in which the occurrence of the behavior prevents the aversive stimulus.

what was the ellis island immigration station like?

Answers

After an arduous sea voyage, immigrants arriving at Ellis Island were tagged with information from their ship's registry; they then waited on long lines for medical and legal inspections to determine if they were fit for entry into the United States.

From 1892 to 1924, Ellis Island was America's largest and most active immigration station, where over 12 million immigrants were processed. On average, the inspection process took approximately 3-7 hours.

More than 120,000 immigrants were sent back to their countries of origin, and during the island's half-century of operation more than 3,500 immigrants died there. Ellis Island waylaid certain arrivals, including those likely to become public charges, such as unescorted women and children.

After the Homestead Strike, conditions at Carnegie's steel mill:
A: improved
B: remained the same
C: grew worse
D: improved, but wages decreased

Answers

Answer:

c

Explanation:

5. What are the natural resources of Nepal ? List them out and write
about two of them.​

Answers

Natural Resources of Nepal:

1. Minerals

2. Metals

Discuss Two ways in some cultural views that exist may affect a relationship negatively​

Answers

Answer:Here are two examples of how cultural beliefs can effect relationships negatively.

Cultural views: 'Cultural views are the views held by society in society to be reliable. We have individual views and also common beliefs.'

Example: 'Indians love hockey.' The comment can be dependable as many people do love hockey, but not everyone loves hockey.

The negative views of some beliefs.

Example 1: In many Asian nations, men holding hands is a mark of friendship. But in western nations that can be seen as a symbol of homosexuality.

Explanation:

Which transactions can increase the balance in a checking account? Check all that apply.
direct deposit of a paycheck
debit of $10
ATM withdrawal of $40
EFT from a different bank into the account
monthly bank fee of $5

Answers

Answer:

direct deposit of a paycheck

EFT from a different bank into the account.

Explanation:

From the options listed the only two transactions that would increase the balance of your checkings account would be

direct deposit of a paycheck

EFT from a different bank into the account.

Direct deposit means that the money gained from working was added automatically to your account and there increases the current balance of the account. EFT is a simple transfer from one bank to another, but since the transfer is coming from a different bank and landing into your account then it is increasing the current balance.

Answer:

A, D

Explanation:

Pope Urban II lied about Muslim atrocities towards Christians to start the
Crusades.
True
False

Answers

Answer:

True

Explanation:

Which statement best explains why government is important?
A.
Government exists to provide political leaders with their basic principles.
B.
Government exists to tell citizens who is to blame when their needs are not met.
C.
Government exists to guide citizens' behavior and protect them from harm.
D.
Government exists to stabilize nations and prevent them from undergoing change.

Answers

The answer is most likely ‘c’. It could maybe be ‘d’, but I doubt it. I hope this helped you answer your question.

C- The Government exists to guide citizen behavior and protect them from harm. This is the basic and sovereign functions of the government and it helps in the growth of the nation.

The functioning of the government is always to protect its citizens and hence the army is deployed on the borders of the country and the various budgets are allocated towards the welfare of the nation.

The govt. implicates various laws and the citizens are advised to take their steps in the jurisdiction of the laws and prove themselves to be law abiding citizens.

However there are a few anti-nation minds who commit acts leading to harm to public and the society at large. Such people are given the required punishments and penalties by the governments by laws.

The govt. also takes various steps to ensure public safety and harmony is maintained and that the people of the country and the society at large is satisfied by the management by the govt.

Hence, the correct option is C that the govt. exists to guide citizens behavior and protect them from harm.

To know more about the government, please refer the links below.

https://brainly.com/question/4160287

Mike has $10. He can buy his favorite CD or a shirt. He decides to buy the CD. What term best represents the shirt?

Answers

His opportunity cost.

4. Choose two geographical features to visit in Africa. Tell about the feature and why would you visit?

Answers

Answer:

I would visit the Nile River because it is the only river that flows north instead of south and is the longest river in the world. I would also visit the Sahara Desert because it is the largest hot desert in the world and is home to beautiful animals such as antelopes and gazelles. Both features are beautiful, unique and has had in important role in shaping the society of countries in Africa.

Explanation:

They're just facts.

1. What State in America did the British send nearly 60,000 Prisoners to?

Answers

Answer:

After 1718, approximately 60,000 convicts, dubbed "the King's passengers," were sent from England to America. Ninety percent of them stayed in Maryland and Virginia. Although some returned to England once their servitude was over, many remained and began their new lives in the colonies.

State four acts considered indiscipline on the roads​

Answers

Answer:

1) Not following the traffic rules.

2) Rash driving.

3) Cutting lanes and speeding.

4) Drunk driving.

Explanation:

Indiscipline is the act of doing things without order or any discipline. This means that things done randomly and rashly, without any regard for the safety and security of others are known as indiscipline acts.

Four acts that are considered to be indiscipline on the roads are as follows-

1) Not following the traffic rules.

2) Rash driving.

3) Cutting lanes and speeding.

4) Drunk driving.

MY BIRDS A PRETTY BIRD RIGHT..?

Answers

Answer:

YES YOUR BIRD IS A PRETTY BIRD!!!!↖(^ω^)↗ (︶^︶) └(^o^)┘

Why did Colombus call the people he met in the Americas Indians
A. He had told the king and queen of Spain he would find a route to India
B. He wanted to honor the culture of India
C. He mistakenly assumed he was in the indies
D. He thought the language they spoke sounded like the language of India

Answers

C. He assumed that he had arrived in the indies

Which statement best compares the two types of trial
courts?
O Superior courts are located in only a few districts;
state courts are across Georgia.
O Superior court judges are appointed, and state court
judges are elected.
O Superior courts oversee criminal cases, and state
courts oversee civil cases.
Superior courts handle all kinds of trials; state
courts handle misdemeanors and some civil trials.

Answers

Answer:

Superior courts oversee criminal cases, and state

courts oversee civil cases.

Explanation:

Answer:

Superior courts handle all kinds of trials; state

courts handle misdemeanors and some civil trials

Explanation:

This is the correct answer

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What allowed the Bolsheviks to overthrow the Provisional Government in Russia and seize power in 1917?

Answers

Answer:

The Bolsheviks seized the Winter Palace and arrested the government officials.

Explanation:

In Russia, the Bolshevik became popular among the peasants and working class because he wanted to redistribute land among the peasants to reform the agricultural sector. Bolsheviks were part of the Russian Social-Democratic Workers’ Party, which had a different ideology based on Karl Marx and believed in revolution. The Bolsheviks came to power in Russia in 1917 after the overthrow of the Provisional government and the abdication of Tsar Nicholas II.

What happens if the bill is not signed by midnight?
a.
it’s too late
c.
it will become a law
b.
there is an extension granted
d.
none of these

Answers

Answer:

The answer is C.it will become a law

Explanation:

Got it right on the test

True or False: Republicans identify with the color blue and a donkey. They want a weaker military and do not support traditional family values.

A. True
B. False

Answers

Answer:

False.

Explanation:

1. Democrats identify with the color blue and a donkey.

2. Republicans want a stronger military.

3. They do not support family values.

Hope this helps! c:

Select ALL the correct answers.

Which two statements describe third-party candidates that have run for the presidency?

1- Donald J. Trump ran as a conservative Republican candidate in the 2016 presidential election.
2- Bill Clinton ran as a liberal Democrat candidate in the 1992 presidential election.
3- Theodore Roosevelt ran for president on a progressive platform for the Bull Moose Party in 1912.
4- Ross Perot ran for president as a Reform Party candidate in 1995.

Answers

Answer:

Roosevelt and Perot

Explanation:

A third party candidate is any candidate who isn't running as a Republican or a Democrat.

The statements which describe third-party candidates that have run for the presidency are,

1. Theodore Roosevelt ran for president on a progressive platform for the Bull Moose Party in 1912.

2. Ross Perot ran for president as a Reform Party candidate in 1995.

What is a third party candidate?

A third-party candidate is the candidate which belongs from other party than democratic or republic.

Voters seldom pick third-party and independent candidates, but the outsider candidates make their mark by adding their ideas to the agenda. “The most important role of third parties is to bring new ideas and institutions into politics.

Thus, statement 3 and 4 are true, as these are the third-party candidates that have run for the presidency.

Learn more about third party candidate here,

https://brainly.com/question/461368

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How do the details in the text of Peter Pan and in the illustration work together to contribute to the tone of the story?

Answers

Answer:

The details in the text and the illustration work together to contribute to the tone by describing that how children were delighted to learn that they all can fly.

Explanation:

Peter Pan is a children's fictional work written by J. M. Barrie. The story is about the Darling family and Peter Pan, who is m-i-s-c-h-i-e-v-o-u-s.

In chapter 4,  Peter Pan teaches the children how to fly. The details in the text and the illustration work together to emphasize the tone of the story. It emphasizes that the children were happy both to follow Peter's lead and to fly. Therefore, the tone presented by both the details and illustrations is delightful and happy.

The _____ is the line of longitude at 180 degrees.
Please and thank you help me.

Answers

Answer:

prime meridian

Explanation:

What was promised to Christians for participating on the Crusade.

Answers

Answer:   Gold and land

Explanation:

Answer:

He promised forgiveness and pardon for all of the past sins of those who would fight to reclaim the holy land from Muslims and free the eastern churches

Explanation:

Why is the tradition of the Giant Omelette Brotherhood
of Bessières attributed to Napoléon Bonaparte?

Answers

Answer:

According to legend, Napoleon's army once camped for the night near Bessieres. Napoleon stayed in an inn, where he ordered an omelette for dinner. The innkeeper's meal was so incredible that Napoleon ordered every egg in the village to be gathered and made into one giant omelette for his army's breakfast the next day.

compare and contrast spiral and elliptical galaxies (make at least 2 comparisons.)

Please help I will give brainliest

Answers

Answer

While spiral galaxies are bright, elliptical galaxies are dim. Spiral galaxies are hotbeds of star formation, but elliptical galaxies aren't nearly as prolific because they contain less gas and dust, which means fewer new (and brighter) stars are born.

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