What is the primary difference between an experiment and an observational
study?
A. An observational study involves many more people.
B. Observational studies always make correlations.
C. In an experiment, the researcher manipulates a variable.
D. Experiments are always done in a lab.

Answers

Answer 1

a observational study is where nothing changes and just record what you see, but an experimental study is where you have a control group and a testable group.

Hope this helps you out!

Answer 2

An observational study involves many more people is the primary difference between an experiment and an observational study. Hence, option A is correct.

What is observational study?

Subjects are observed in observational studies without having their circumstances forcibly changed, or, to put it another way, without any intervention. Observational studies try to examine risk factors, diseases, or outcomes in their "natural" form, even though participants' behavior may change while being studied.

In an observational study, participants are observed performing particular behaviors or activities without being given any advice or direction from the researchers. For instance, if a researcher wishes to examine how people's water intake affects their food practices.

Cohort, cross-sectional, and case-control studies all fall under the category of observational research.

Thus, option A is correct.

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Related Questions

Please answer this question ​

Answers

Answer:

Point C........................

Answer:

Mechanical to kinetic

Explanation:

Since the lady is applying mechanical force on the machine and due this the machine is being able to displace a distance.

words are greater than sword

Answers

Answer:

Hi there~

Well, in your opinion, this could be true, but to me I thinks it's:

- Actions are greater than words

- Pencil is greater than a sword

Hope this helps

Sky

Answer:

im a weeb so i think swords are cool XD

Explanation:

Which verb or verb phrase signals an inappropriate shift in mood?
We are delighted to confirm your interview for next Monday at 11:00
a.m. Bring your resume with you, and will you please arrive 10 minutes
early to fill out some paperwork? The manager will ask you about your
experience. Then you will have to show us that you know how to use
design software. You will be able to park in our main lot. The doorman
will show you to our office.
O A. will be able to park
O B. will you please arrive
O C. delighted to confirm
D. Bring

Answers

Answer:B, will you please arrive

Explanation:

I took the quiz and got it right

Which of the following best describes the main focus of Lincoln's speech?
A. Remembering and respecting the Confederate dead
B. Honoring Union dead and their sacrifice in order to inspire the public to support the war effort
C. The pointlessness of historical memories
D. Reimagining future national purposes

20 POINTS

Answers

Answer:

The lines of Abraham Lincoln's “Gettysburg Address” that support the claim for the purpose of the war are the following: “We here highly resolve these dead shall not have died in vain; that the nation, shall have a new birth of freedom, and that government of the people, by the people, for the people, shall not perish

Explanation:

The one that recounts the key focus of Lincoln's speech would be:

B). Honoring Union dead and their sacrifice in order to inspire the public to support the war effort.

Abraham Lincoln's speech

The above statement effectively displays the key highlight or the purpose that Lincoln wishes to serve through his speech.

His aim is to recognize and realize the sacrifice made by the martyrs in order to fight for the right cause.

Through this, he aims to inspire the audience to not allow their sacrifice to go in vain and to take part in this battle and make their death worth it by recognizing their effort.

Thus, option B is the correct answer.

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Which part of the Hero's Journey marks his passage into the Supernatural World?
O Crossing the Threshold
O Supernatural Aid
O Resurrection
O Call to Adventure

Answers

Answer: crossing the threshold

Crossing the Threshold

what is an example of imagery in "The Monkey's Paw"?​

Answers

Answer:

White sits before the dying fire and imagines he sees terrible, simian faces within in it; this is a creepy and powerful image that foreshadows the doom to come

Explanation:

How is bravery presented I. Macbeth

Answers

Answer:

Macbeth clearly exhibits bravery when he fights for his country.

Answer:

Macbeth exhibits bravery when he fights for his country, this is acknowledged by King Duncan, who rewards Macbeth with the title of Thane of Cawdor. Macbeth is characterized as a "valiant" warrior at the start of the play, and Rosse calls Macbeth "Bellona's bridegroom."

Explanation:

Hope this is what your're looking for!

Brain-List?

PLEASE HELP ME :))). In "The Danger Of A Single Story" How does the author use her personal experiences in the text to introduce and develop her main idea? Cite evidence from the text to support your response.

Answers

Answer:

hyperbore

Explanation:

What is the benefit of having a fixed interest rate loan?
a. Your interest rate changes annually, therefore, you may be able to get a
lower rate.
b. Your interest rate stays the same, therefore, the amount of interest you
pay stays the same.
Your interest rate changes, therefore, making this an easier loan to
obtain.
d. Your interest rate stays the same, but the monthly payment on this type
of loan changes drastically.
C.

Answers

Answer:

I think the answer is A. Your interest rate changes annually, therefore, you may be able to get a lower rate.

Explanation:

The main advantage of a fixed-rate loan is that the borrower is protected from sudden and potentially significant increases in monthly mortgage payments if interest rates rise. Fixed-rate mortgages are easy to understand and vary little from lender to lender.

I hope this helps u! :D

PLZ HELP AND HURRY I DIDNT READ THIS!! WILL GIVE BRAINILIST!! THANK YOUUU !!
While sitting with his guests at the banquet table, Macbeth sees a ghost, one that no one else can see. The ghost is, essentially, a hallucination. From a psychological standpoint, why does it make sense that Macbeth's thoughts would be fixated on this no longer-living individual?

Answers

Answer:

Gimme Brainliest

Explanation:

In Macbeth, Act 3, Scene 4, Macbeth arrives to join the banquet table, only to see all the seats are full. Lennox points out a seat, saying that it has been reserved for Macbeth.

Answer:

The human minds focuses on paranormal beings because it is new to them and intresting

Explanation:

How does Squeaky react when Mr. Pearson suggests that she let someone else win the race?
A She looks around for Gretchen because she is embarrassed.
B She tells him to stop talking because she is sad.
C She stares at him and then walks away because she is angry.
D She ignores him and leaves to find Raymond because she is nervous.

Answers

Answer:

More details, please.

Explanation:

Answer:

the answer is c, she stares at him and then walks away because she is angry

Explanation:

i just took the test

what happens after Bill kicks Red chief out of camp? A. They lose the ransom money B. Red Chief returns to camp C. Red Chief contacts the authorities

Answers

Answer:

B. Red Chief returns to camp.

Explanation:

O. Henry's short story "The Ransom of Red Chief" revolves around two petty criminals and their failed attempt in trying to get money from kidnapping a rich man's son. But contrary to their expectation, things did not go well and the story hilariously ends with these criminals instead paying the father for the return of his kidnapped son.

After the small kid, Johnny Dorset was taken to the cave to hide out, he renamed himself Red Chief and made Bill play with him as Indians. But with the 'intensity' of their game and the 'hyper-activeness' of the young boy, Bill became so wearied and wanted nothing more to do with the boy. So, while the narrator Sam went to the post office to mail the letter of ransom, Bill was left to keep Johnny entertained. It was during this time that he 'tried' to return Johnny but with no success. Johnny had followed him back to the camp, without the knowledge of Bill.

Thus, the correct answer is option B.

What is the author’s purpose in this passage?

a. To inform the reader about stage adaptations of Shakespeare’s characters.

b. To convince the reader that Shakespeare’s writing is out of date today.

c. To persuade the reader to explore more works by Shakespeare and others.

d. To question the reader about current understandings of Shakespeare’s writing.

Answers

A. To inform the reader about stage adaptations of Shakespeare's characters.

Answer:

To inform the reader about stage adaptations of Shakespeare’s characters.

Explanation:

What does Pound encourage poets to do?
Delight readers with the music of the poem
Produce long works
Describe things carefully and fully
Build in references to the poets of the past

Answers

Answer:

Delight readers with the music of the poem

Explanation:

Edgenyity 11th grade Assignment 2021

Delight readers with the music of the poem does Pound encourage poets to do

What is a poem?

A grouping of words, whether spoken or written: Traditionally a rhythmical writing with occasional rhymes that expresses feelings, thoughts, or experiences in a way that is more focused, creative, and potent than regular speech or prose: Some poems use the meter, while others use free verse.

Considering that his affection for his children is the key subject. Therefore, Longfellow is worried about what will happen to his kids if he ever dyes his hair. He attempts to persuade himself that because he properly teaches children, they would be able to live moral lives.

Simply expressed, the poem's purpose is what motivated the author to begin using a quill, pencil, or keyboard, or to sit down at a computer. Consider the poet's initial intentions when determining the purpose of her work. For instance, was her goal to instruct, inspire, or amuse?

Therefore, option(A) is correct.

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Elise says, "If you subtract 15 from my number and multiply the difference by -5, the result is - 50."

What is Elise's number?
Elise's number is

Answers

Answer:

25

Explanation:

25-15=10

10 X -5= -50

Hope this helps!

In a text with a compare and contrast text structure, the author А explains something that happened and the reasons why. B tells about events in the order they happened. C explains how things are similar and different. D describes a problem and then explains how someone solved it.​

Answers

Answer:B

Explanation:

Answer:

C

Explanation:

Correct the one word that is spelled incorrectly.
In 1948, President Harry Truman signed an executive order that established
a commitee to protect the rights of minorities serving in the U.S. Armed
Services.

Answers

Answer:

Commitee is spelled wrong. It is COMMITTEE

Explanation:

:)

The fundamental meaningful unit of a language is a word. A word is described as "a single unit of language that means something and can be spoken or written" by the Oxford Dictionary. the one word that is spelled incorrectly is commitee, it is COMMITTEE.

Children need to learn how to spell words at an early age because it lays the foundation for more difficult words and sentences. Through spelling, kids discover how letters and sounds relate to one another.

Spelling is crucial for other fundamental abilities, such as writing and reading. These abilities aid kids in getting good scores and moving up through the schools.

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my school wants me to write a something but I have two chooses
I could write it as a poem or as a story.
which one should I pick?

Answers

Answer:

I say story

Explanation:

It doesn't give you a limit on how much to write plus with certain poems there are certain rules. But it all comes down to these choices do you want to follow the rules (poem) or do your own thing (story)

Among these issues, what do you think does he value the most?
9


aming yawa ​

Answers

I don’t think there is enough context clues for me to answer sorry

Please help me :))))))))

Answers

Answer:

1. her

2. him

3. us

4. them

5. it

6. it

hope it helps! please mark me brainliest

thank you!! have a good day ahead

*
Compose a dialogue between two talking about the study
habit in students after two decades.

Answers

Student 1: Amazing how the internet optimizes our study time, don't you think?

Student 2: I think so, we were able to find the subjects that we need to study in just a few seconds. In addition, we can use various devices to store our notes, which increases our quality of study.

Student 1: I wonder how the students of 20 years ago had more difficulties to study because they do not have the technology we have today.

Student 2: I can't even imagine how to spend hours researching libraries, carrying heavy books and millions of pages with notes must have made their lives difficult. I'm glad I wasn't a student at that time.

Student 1: I'm also happy that I got rid of this.

Student 2: I hope that students in the future will have even more facilities.

Student 1: me too.

In Selection 2, what connection is drawn between the scientific research and the presence of wild horses in the Currituck National Wildlife Refuge?

Answers

I have no idea, I’m just answering to get points. Hoped this helped in some way.hehe

Answer:

C

Explanation:

If your friend asks you these questions, how do you answer?
Your friend
You
a.
Do you cut your hair yourself?
No, I get it cut by a barber.
b. Do you check your homework yourself? No, I have---
Did you cook food this morning? No, I made-------- cook it.
d. What can we have done at a dentist's? We can have----

Answers

Explanation:

b . made my homework check by teachers

c I made my mom cook it

d. checkup

b. my teacher check it
c. my mom
d. our teeth cleaned

I WILL GIVE BRAINLIEST!!!

Choose the subject in this sentence.

I want to drive the car this time.

Choose 1 answer:

(Choice A)
A
I

(Choice B)
B
car

(Choice C)
C
time

Answers

Answer:

I (Choice A)

Explanation:

A subject is a person, therefore being I.

Answer:

B. Car

Explanation:

That is what is shown or presented as the topic, therefore, being the subject.

Describe how today’s world would be different if cell phones had never been invented.

Answers

Answer:

Before mobile phones, we had wired phones. These were great, but they don’t work when you go out and public phones were unreliable and often very dirty. It is very important for technology to be made increasingly mobile and discrete. It is completely irrelevant to consider what would happen if this trend doesn’t continue.

Explanation:

(pls mark me brainliest if you can)

Answer 10,11,12 please i’m putting in 20 points and will mark brainliest for all 3

Answers

Answer:

10- Oxymoron

The words "safety" and "hazard" are right by each other and those are complete opposites so that is an oxymoron.

11- alliteration

The use of the b's at the beginning of a lot of the words is alliteration because it is the repetition of a similar sound at the beginning of the word. The only other one that it could be is consonance because consonance also repeats a sound, but only consonants and it is usually at the end of the word. Even though b is a consonant, I don't think it is consonance because the repetition appears at the beginning of the word.

12- Anaphora

This is anaphora because the word "singing" is being repeated in most of the clauses in order to place emphasis on it.

Prompt (A): Read the following statement from an article about natural resources.
According to scientists, the ocean is the Earth's most valuable natural resource of fish and
minerals. It is considered an unlimited supply of seafood, trade and transport. Yet, the constant
growth in the demands for food and trade threatens the survival of fish. Scientists believe that
the decline in the natural resources of fish has negative effects on the health, security and way
of life of communities.
(please explain this in your own words) ​

Answers

Answer:

The ocean owes humanity everything especially food, which is gotten from aquatic organism.

But all of this could vanish just of man, and all the exploitative activities carried out in the ocean.

PLZ PLZ HELP I HAVE 5 MINUTES
Read the following excerpt from an online op-ed article.

Answers

Answer:

the answer would be B I hope I was correct

Explanation:

Answer:

the damage to the environment

Explanation:

the author already provides us with enough information about the other options, but the author brings up the damages to the environment without any evidence/supporting details.

Help please

The meeting left a bad taste in his mouth.
Which sentence rewrites the same statement using literal language?

Answers

he felt unpleasant after attending the meeting, usually if you "have a bad taste in your mouth" you're uncomfortable with something

What is the most prominent appeal in the advertisement? Explain your choice between
Ethos, Pathos, and Logos using evidence from the Speeding ad #2.
Hit at 30mph there’s an 80% chance I’ll live hit at 40 mph there’s a 70% chance I’ll die

Answers

Answer:

Logos

Explanation:

it makes you use logic to give you safety tips.

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