Yolanda is performing an experiment because she wants to find out if listening to music while falling asleep helps people sleep longer. She divides her participants into two different groups. One group listens to music of their choice for 30 minutes before falling asleep, while the other group is asked to fall asleep without listening to music. Yolanda then keeps track of how long each person is asleep, from when they fall asleep to when they wake up. In this experiment, what is the independent variable?

Answers

Answer 1

Answer:

In the study described, the independent variable is listening to music while falling asleep.

Explanation:

A dependent variable is what is being measured by the study. In this case, it is how long people sleep. The independent variable is the factor controlled or changed with the purpose of affecting the dependent variable. In Yolanda's study, it is the act of listening to music while falling asleep. Yolanda wants to see if listening to music will affect how long people sleep. To find out if it does, she divides participants into two groups - one that will and one that will not listen to music for 30 minutes before falling asleep.


Related Questions

What were the Indus Seals or Stamps used
for?

Answers

Answer:

Explanation:

Image result for What were the Indus Seals or Stamps used for?

Stamp seals were used in antiquity as marks of ownership and badges of status. In the large urban centers of the Harappan civilization, hundreds of square-shaped stamp seals were found in excavations. They are engraved with images of wild or domestic animals, humans, fantastic creatures, and possibly divinities.

in ancient china, the movement of people really pushed towards the _______.​

Answers

Answer:

silk road

Explanation:

i am not a 100% sure but let me know if it is right have a great day

Which philosophy was the most influential in crafting the American democracy

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In turn, the Enlightenment ideals of liberty, equality, and justice helped to create the conditions for the American Revolution and the subsequent Constitution. Democracy was not created in a heartbeat.

What made immigrants Jacob Riis famous in the late nineteenth century?

Answers

Explanation:

At the peak of Europeans to New New York in the early 1800s, Jacob Riis was a reporter and political theorist who publicised accommodation, literacy, and poverty problems. Jacob Riis was a key figure in establishing a connection between portraiture and social change.

Density of an object is equal to the quotient of its mass and volume and object has a density of 10 g perL and a volume of 40 L what is its mass in grams

Answers

Answer:

400grams

Explanation:

thank you hope you get it

PLZZZ SOMEONE PLSS I NEED HELP IVE BEEN TRYING AND TRYING BUT I JUST DONT KNOW I WILL BRAINLEST CAN SOMONE PLZZ JUST HELP ME PLSS HELPP ANYONE​

Answers

Answer: these affect the econemy because it will slow down how much pepoll can get out of there houses and will prevengt them from going to buy things and that will slow down the econemy. it will wffect the region because it will ruin buildings an d housing and they will have to staertr all over again.

Explanation:i hope this helped

Somone pls help plssss I don't know ​

Answers

Answer:

french

to many people

Explanation:

french took most of the land and it was hard for them to divided and they lost most of there people in war

20°s, 140°e what continent is this

Answers

Answer:

The continent as well as the flag state of Australia is located at the co-ordinates that were stated by the OP in the question.

Audrey, a senior thesis student, is interested in the relation between childhood residential mobility and adulthood socio-emotional outcomes. She predicts that moving from one home to another as a child might negatively influence trust as an adult. To test her claim, she asks participants to self-identify whether they moved often as a child or not. She then asks them to complete questionnaires about trust in friendships. Later, she compares responses of those who moved with those who did not. What type of measurement is Audrey using

Answers

Answer:

The answer is "Self-report".

Explanation:

The self-report assessment includes a person or a group of individuals who share their opinions, convictions, and experiences employing inventories or surveys. Such calculations can be easily managed and considered more accurate than other evaluations. This information is usually collected in paper or electronic formats, or often in an interview.

*Timed please help*
Which did Ronald Reagan promise to do during his presidential campaign in 1980?
O appoint a woman to the Supreme Court
O support the Equal Rights Amendment
O emphasize the importance of peacekeeping O call for reductions in the military​

Answers

its A appoint a woman to the supreme court

Ronald Reagan promise to do this during his presidential campaign in 1980: A. appoint a woman to the Supreme Court.

What is the Supreme Court?

Supreme Court is also referred to as an Ap-ex court and it can be defined as a federal court that ultimately represents the highest court based on the hierarchy of courts within the judicial branch. Also,with respect to jurisdiction, the Supreme Court has both:

Original jurisdictionAppellate jurisdiction

During the presidential campaign in 1980, Ronald Reagan promised the people of America that he was going to appoint a woman as a chief justice of the Supreme Court, so as to enhance and encourage women engagement in politics.

Read more on Supreme Court here: https://brainly.com/question/1991159

Which of the following statements is true of the regions marked A and B on the map above? A. They experience changing seasons throughout the year. B. They receive a lot of sunlight because the Sun’s rays hit them directly. C. They have warm temperatures throughout the year. D. They have cold temperatures throughout the year. Please select the best answer from the choices provided A B C D

Answers

Answer:

Definitely the answer is D. Hope this helps you :)

Explanation:

Answer:

d

Explanation:

The conference that was held in January 20, 1942 to finalize plans for the Final Solution was known as the ?

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Im sorry im not sure

*giving brainliest to the person who’s answer is correct first*

Match the term in Column 1 to the corresponding statement in Column 2.

Answers

Answer:

Explanation: response goes to last under goes to first the last one goes to the last one

major landforms names in Algeria

Answers

ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

Answer:

mountains, deserts, and plateaus. The major one which covers 90% of Algerian land is the Sahara desert (also the largest desert in the world).

Explanation:

PLEASE HELP ASAP!!!!
Which statement best describes the US economy during the late 1940s and 1950s?

The economy was very weak during the postwar era.
The economy was very strong during the postwar era.
The economy remained even during the postwar era.
The economy wildly fluctuated during the postwar era.

Answers

the economy was very strong during the postwar-era. -best describes the US economy during the late 1940s and 1950s

Answer:

B

Explanation:

Edg 2021

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Answers

Answer: the answer is B- the levant

Explanation:

Answer:

its c plz give me brainlest

Explanation:

ijust took the test

why were the Americans upset about Britain's navy use of impressment?

Answers

Answer:

Americans claimed that the British were none too careful about who they removed from the boarded vessels, and that free sailors were impressed into British service along with deserters. Britain's insistence on pressing sailors into naval service sprang in part from its wars against Napoleon.

Explanation:

Your welcome<3

Got it from www.nps.gov

The Second Round Table Conference was held in

Answers

Answer:

7 September 1831 to 1 december 1931

Empires that eventually controlled the area of Babylon include the Hittites, Kassites, Assyrians and Chaldeans.
True
False

Answers

Ok I will true you answer

Answer:

true

Explanation:

physical geography of East Africa is dominated by a chain of geological faults known as​

Answers

The Great Rift Valley

The East African Rift Valley (EAR) is a developing divergent plate boundary in East Africa. Here the eastern portion of Africa, the Somalian plate, is pulling away from the rest of the continent, that comprises the Nubian plate. This extension has formed a rift valley, similar to the morphology of the one we see at the Vale of Eden albeit much younger! Crustal extension has formed a series of elongate lowland valleys bound by steeply dipping normal faults, separated by regions of comparatively high land. The Nubian and Somalian plates are also separating from the Arabian plate in the north, thus creating a ‘Y’ shaped rifting system. These plates intersect in the Afar region of Ethiopia at what is known as a ‘triple junction’.

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