Among a group of disabled women aged 65 and older who were tracked for several years, those who had a vitamin B12 deficiency were twice as likely to suffer severe depression as those who did not. (American Journal of Psychology 157 [2000]:715)a)Explain why this is an observational study and not an experiment.b)Who were the subjects of the study

Answers

Answer 1

The correct answer to this open question is the following.

According to your question, there are only two parts to be answered, a) and b).

Being that the case, we can comment on the following.

A) This is an observational study and not an experiment because the research was only limited to observation, participants never receive any kind of treatment or another interaction to experiment with them.

B) Who were the subjects of the study?

The subjects of this study were women aged 65 and older who were tracked for several years. The observation revealed that those women who had a vitamin B12 deficiency were twice as likely to suffer severe depression as those who did not.

So, according to the American Journal of Psychology, these were the women observed during the study. There were no more experiments, interactions, or activities applied to them in order to consider it an experiment.

Let's remember that in order to consider an experiment as such, there has to be another component of the study, and the experimental part of it that has to be tested and proved passing the scientific method to conclude in something valid.


Related Questions

Which statement best describes a limiting factor?

A. A limiting factor is a nonliving or living thing that regulates the
size of a population.

B. A limiting factor is a nonliving or living thing that increases the
size of a population.

C. A limiting factor is a living thing that keeps the size of a
population steady.

D. A limiting factor is a nonliving thing that makes the size of a
population fluctuate greatly over time.
Item +35440

Answers

Answer:

C) A limiting factor is a nonliving thing that keeps the size of a steady population

Explanation:

limiting factor is anything that constrains a population's size and slows or stops it from growing. Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources.

Describe in five sentences the impact of events leading up to American involvement in World War II. Please make sure to include Lend- Lease and the bombing of Pearl Harbor. . -​

Answers

Answer:

From the beginning, America was neutral in the conflict. In 1939, when war broke out, President Roosevelt announced that he would not be involved in an essentially European conflict. But nevertheless, America began to ideologically align itself with the allies, especially France and Great Britain, which was reflected in diplomatic actions such as the Lend-Lease Act or exclusive trade with the allied nations. This was seen as a threat by the Axis nations, especially Japan, who viewed America as a threat to their interests in the Pacific. For this reason, Japan ended up bombing Pearl Harbor in 1941, initiating American participation in the conflict.

If you make only the minimum payment each month, what will the total cost of the computer be?

$600
$629
$774
$830

Answers

Answer:

C - $774

Explanation:

Answer: $744 on edg 2023

Explanation: i got it right

2.) How was slavery different based on where one lived? How was slavery similar, no
matter where one lived?

Answers

Answer:

The history of slavery spans many cultures, nationalities, and religions from ancient times to the present day. However, the social, economic, and legal positions of slaves have differed vastly in different systems of slavery in different times and places.

Explanation:

Slavery was different based on where it was practised and lived as directed to their work, whether to work as domestic servants or on plantations.

Slavery

The practice of slavery began in many countries as it was part of the trade and cheaper than other forms of servants.

The practise of slavery in North and the South differ from one another.

Slaves in the South suffered more than others as they were beaten harshly and forced to work for long hours on plantations.

In some way, slavery was similar as it tied them to their masters.

They did not have any rights or freedom as they were sold to others without their concerns.

Learn more about slavery here:

brainly.com/question/9374853

Imagine that you are a Pilgrim preparing to get on the Mayflower. Write a letter persuading other Separatists to join you on the journey across the Atlantic Ocean.​

Answers

Answer:

Bretheren, The time has come for us to leave this place that has oppresed us. We have no freedom to worship the one true god. Let us venture to the New found world and start a new colony. We will have harships. But they will harden us.

Explanation:

The importance of the National Security Council (NSC) is that it advises the president on
what issues?

Answers

Answer:

Potential acts of terrorism  from both inside and outside the country.

Explanation:

The national security council was established in September 18, 1947. At first, it was created to protect United States from potential attacks from the Soviet Union. (Who's involved in a cold war with us during that time).

When the Soviet Union dissolved, the shift of focus for the National Security Council changed. Not it's mainly focused on detecting when potential terrorist attacks happen and focused all of its resources in preventing it before it happened.

8. Define Voltage and give an example in real life.

Answers

Answer:

Example of voltage from real life is a water tank with a hose extending from the bottom. Water in the tank represents stored charge. It takes work to fill the tank with water. This creates a store of water.

Explanation:

Is it appropriate to say 'good morning' after 12:00 o'clock?

Answers

it’s better to say good afternoon instead

Answer: no

Explanation:

BEST supports this claim: Susan B. Anthony was an influential American civil rights activist. A. Susan B. Anthony was born and raised in Massachusetts. B. Susan B. Anthony died in 1906 from heart disease and other complications. C. Susan B. Anthony organized groups and gave speeches to support women's right to vote. D. Susan B. Anthony worked as a teacher at one time, but she decided to leave the profession.

Answers

It’s letter C, bc that is the only answer that shows her as an influential American civil right activist

The children of pioneers spent most of their time indoors, studying.

O True

O False

Did the children of pioneers most of their time indoors, studying?

Answers

False

Children of pioneers had chores to do. Family farms meant, from an early age, kids were put to work!! Hands on learning about livestock, nature, behavior

Make hay while the sun shines!!

what is Gupta empire​

Answers

Answer:

The Gupta Empire was an ancient Indian empire existing from the mid-to-late 3rd century CE to 543 CE. At its zenith, from approximately 319 to 467 CE, it covered much of the Indian subcontinent. This period is considered as the Golden Age of India by the historians.

Explanation:

:)

can you help me to make a short speech about dream is too work hard. please!​

Answers

Answer:

Here your speech about "Dream"

Explanation:

Good morning one and all present here. I am standing before you all to share my thoughts through my speech about dreams. Dreams are the beautiful imaginations that one takes on to escape from the ruthless reality. Sometimes people incline to dream and live a fictional life. This may be to ignore the struggles and difficulties that they have to come across in life. There are other kinds of dreams that do not let the person sleep until they achieve it. Dreams give meaning to our life. It prepares a person to set goals and then achieves them. These kinds of dreams are very important to achieve success and fame.

PLEASE THANK, RATE AND FOLLOW ME,

AND PLEASE MARK ME AS "BRAINLIEST" ANSWER

HOPE IT HELPS YOU


how did women help the American
soldiers during the American Revolution while
they were at Valley Forge ?

Answers

Answer: Women played critical roles in the American Revolution and subsequent War for Independence. ... These women, known as camp followers, often tended to the domestic side of army organization, washing, cooking, mending clothes, and providing medical help when necessary. Sometimes they were flung into the vortex of battle

Explanation:

Hope this helps

how Dr. Schneider's observations with hummingbirds demonstrate the operation, in hummingbird populations, of each of the four components of natural selection listed in the video.In this video, Dr. Schneider points out that some of the hummingbird species in his study are 2 million to 3 million years old, which he notes makes them very young species?

Answers

Answer: Schneider's observations with hummingbirds demonstrates the operation in hummingbird populations, because for one variation in the hummingbirds can give the birds long beaks or short beaks which is heredity and when there is that reproduction depending on the environment of the bird it will either live to reproduce

Explanation:

Hope this helps

What is your concept of a meaningful life?

Answers

Explanation:

.......,.....................

how would a constitutional monarchy weaken the power of the King?

Answers

He would lose his role as king and have no say in anything that goes on in his country.

What are the possible solutions for water disputes in egypt?

Answers

Watering holes that are made by digging into the ground , other countries donating our water supply,giving them supplies to clean their water

Please help! I give brainliest!

Answers

You must 1. pass a test about US history and 2. speak, read, and write US English

how does the government implement law mention​

Answers

Answer:

Laws start in Congress. When someone in the House of Representatives or the Senate wants to make a law, they start by writing a bill. ... If the President signs the bill, it becomes a law. If the President decides not to sign the bill into law, it is called a veto and the bill is sent back to Congress.

Tammy is a 16-year-old who works in a fast food restaurant. One day, Tammy slipped on the greasy floor. To catch her fall, she tried to grab a bar near the grill. Tammy missed the bar and her hand touched the hot grill instead. She had to go to the hospital to be treated for a burn and was unable to wait tables until she healed. What was the hazard?

Answers

Answer:

The hazard was the greasy floor.

Explanation:

the burn and the hot grill were only a hazard after she fell from the greasy floor

2. Define electric current
Electric current is

Answers

Answer:

Electric current is the flow of electrons. Another definition can be that "An electric current is a course of charged particles that of electrons and ions.".

Explanation: yeah.

Answer:

the flow of electric charge per unit time

Explanation:

27.2In the Russian context, International Women’s Day was celebrated on?a) March 8b) March 22c) February 24d) February 22

Answers

Answer:

8 march

Explanation:

The fact that Women's Day is celebrated on March 8th

Based on source 4, which statement best explains the relationship between the physical environment and the achievements of early humans? 0 Select one: 7 O A. Early humans used the environment to establish systems of trade through bartering. B. Early humans viewed the environment as fragile and used care when creating tools. O C. Early humans viewed the environment as sacred and used it to please their gods. O D. Early humans used the environment to create tools to help them acquire food.​

Answers

Answer:

C

Explanation:

What was the Soviet's purpose for the Korean War?​

Answers

Answer:

795759y8uh8nb

Explanation:

ftyiu tgiftgv

What is the primary goal for a product during its maturity phase?

A. Prepare for the time when the product must be phased out

B. Improve product quality

C. Maximize profit

D. Greater market share

Answers

Answer:

A) Prepare for the time when the product must be phased out.

Explanation:

The maturity stage of any product id when the product has gained great market penetration. At this stage the product is neither in the growth nor decline stage

There are four stages of a product lifecycle:

Introduction

Growth

Maturity

Decline.

At the maturity stage, the product prepares for the decline stage when the product will be phased out.

Answer:

maximize profit

Explanation:

right answer

What invention is seen as revolutionizing life in Britain?
A. Spinning jenny
B. Steamboat
C. Crop rotation
D. Locomotive

Answers

Answer:

B. Steamboat

Hope this helps :)

4. What did Thomas Jefferson admit he thought the
answer to "the problem" of slavery was?

Answers

Answer:

Please mark brainliest

Explanation:

"1785, Jefferson expressed a belief that slavery corrupted both masters and slaves alike, and that gradual colonization would be preferable to immediate manumission."

Hope it helped :)

Where did the ancient Kingdom of Axum originate?

in Arabia
in Ethiopia
in Egypt
in Syria

Answers

Answer: In Ethiopia

Explanation:

Write the five characteristics of a good government?​

Answers

Answer:

Participation.

Consensus oriented.

Accountability.

Transparency.

Responsive.

Answer:

Explanation:What Constitutes Good Governance

Participation.

Consensus oriented.

Accountability.  

Effective and efficient.

Equitable and inclusive.

Follows the rule of law

Hope it Helps and Give a Thanks if So.

In one or two sentences, write how you would give a friend advice on finding the meaning of an unknown sword​

Answers

If my friend has a unknown word I would refer my friend to using the internet to find many resources ; where they could get a definition and examples of a unknown word. Or even using a handy at home dictionary to find a definition!
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