What is one major difference between an observational study and an experimental study?

Answers

Answer 1
One major difference between an observational study and an experimental study is that in an observational study, researchers watch what happens naturally instead of intervening with specific treatments. On the other hand, in an experimental study researchers control the study by controlling as many variables as possible.

Related Questions

Write a speech on why you should be the student council representative for my class. Please I want to win. don't make it like I'm competitive. I just want a sample, Want it before tommorow

Answers

Future Student council let’s do this!
something along the lines of “Because I think this is a fantastic chance, I work very hard in school, and I have a strong sense of character, I should be given consideration for the Student Council. I exhibit excellent leadership and scholarship as well. This is a fantastic chance in my opinion since it will allow me to demonstrate my future self how well I performed academically.Given how much I like participating in and joining groups and activities for school, being elected to the student council would be an honor.”
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Speaking from experience just try to sound as enthusiastic as possible, and I make it known that, that role is made for you lol.
GOOD LUCK!!

Which amendment(s) of the constitution protects the rights of illegal aliens?

Answers

Court said aliens are entitled to lesser First Amendment rights. Supreme Court precedents hold that aliens are entitled to lesser First Amendment protections while seeking to enter the United States, because an alien has no right to enter the country, as per United States ex rel.

In the Mickey Mouse Fractal shown below, the first diagram has a radius of 102cm.
Each successive circle has a radius 1/3 of the previous. What is the circumference
of the smallest circle in the 6th stage? [2 points]
Original
X
Stage 1
X
Stage 2

Answers

0.87912 cm is the circumference of the smallest circle in the 6th stage.

What is a circle?

A circle is indeed a circular, two-dimensional object where every location there in the field is equally spaced from just a key premise. It does not have a length or  height but has a radius or diameter.

Radius of original diagram In the Mickey Mouse Fractal = 102 cm

each successive circle = [tex]\dfrac{1}{3}[/tex] (Previous)

The radius of the circle in 6th stage = [tex]\dfrac{1}{729} * 102[/tex]  

= 0.139917

Circumference in 6th stage = 2[tex]\pi[/tex]r

=27 (0.139917)

= 0.87912 centimeter

Therefore, 0.87912 centimeter is the circumference.

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i hope you can read it i just need answer pleaseee?

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Answer:

hi, just letting you know we can't see it

In an experimental study, it was noticed that people who eat more leafy, green vegetables tend to get better sleep than the general population. Researchers wonder whether the improved sleep might be caused by the minerals potassium and magnesium found in leafy, green vegetables. How could the researchers design an experiment to determine the effects of potassium and magnesium on sleep?

Answers

The experimental study is divided into two phases:

Statement of Problem/ThesisThe experiment designed.

What is Phase I?

It was discovered in an experimental investigation that persons who consume more leafy, green vegetables slept better than the general population.Researchers wonder if the minerals potassium and magnesium present in leafy green vegetables are responsible for the increased sleep.An experiment must be designed to assess the effects of potassium and magnesium on sleep.

What is Phase II?

To design an experiment to determine the effects of potassium and magnesium on sleep,

Because the variables are continuous, the researcher may use multiple linear regression to assess whether the minerals potassium and magnesium present in leafy green vegetables influence enhanced sleep.

Sleep is the dependent variable.Potassium and magnesium are the independent variables.The regression equation helps explain the relationship between sleep, potassium, and magnesium.To find the interactions, an interaction variable may be introduced.

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An outcome of a correlation study attendance and grade point average could potentially conclude all the fallow except...
A: there is a relationship between the number of days a student comes to school and their semester GPA

B: coming to school causes individuals to get higher grades

C: there is a link between those with high attendance and high grades

D: there is a link between those with low attendance and low grades

E: for some individuals, as attendance goes down, grades actually go up

Answers

The answer is going to be D

What makes the study of stigma in mental health so difficult?

Answers

The stigma that people are provoking to ones mental health is “your mentally ill because your weak and pathetic”. Furthermore the stigma in mental health is one of the contributor to an mentally ill persons bad health that’s what makes it difficult to cope with as a victim.

All of the following statements about taking exams are true EXCEPT _____.

Question 6 options:

Cram in last minute studying - you never know what little details might be useful.


Answer the easy questions first.


Do Check Your Learning self assessments before taking the exam.


Ask the teacher questions before taking the exam.

Answers

Answer:

A

Explanation:

Cramming doesn't really help it's better to stay still with the info you've gained earlier

Which state in the United States is predicated to have the most warming due to climate change?
Arkansas
Arizona
Alaska
Alabama

Answers

The state in the United States that is known to have predicated to have the most warming due to climate change is known to be called Alabama.

Check more about climate change below.

What is climate change change?

Climate change is known to be a term that is said to be a kind of long-term shifts in regards to temperatures a s well as weather patterns.

Note that they are known to be shifts that can take place in a  natural way  such as via the variations in regards to solar cycle. The human activities are said to have been the main key pusher of climate change, mostly due to burning fossil fuels such as coal, oil and gas.

The global warming is known to be one that affect Alabama and this is one that take place if the  oceans and atmosphere is one that always be warm, sea level along the Alabama coast and it is one that tend to rise a lot.

Therefore, based on the above, one can say that The state in the United States that is known to have predicated to have the most warming due to climate change is known to be called Alabama.

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I need this answer so urgently why is economics a social science? importance of economics.​

Answers

Answer:

social science because it uses scientific methods to build theories that can help explain the behavior of individuals, groups and organization's.

Explanation:

please answer this question thank youu

Answers

This sentence is an example of a hypothesis. The word “predicted” gives it away; the definition of a hypothesis is an educated guess in which prior knowledge and common sense is applied.
the anwser is hypothesis because this has been predicted by whoever came up with this prediction

QUESTION 8 Discuss the importance of work and how it impacts on the social and economic needs of the country. (10)​

Answers

Explanation:

Creating jobs helps the economy by GDP. When an individual is employed, they are paid by their employer. This results in them having money to spend on food, clothing, entertainment, and in a variety of other areas. The more an individual spends, the more that demand increases

The image below shows the distribution of members of a population.
What type of distribution is shown?
A. Uniform
B. Clumped
C. Irregular
N
D. Random

Answers

Answer B. Clumped

Explanation

A researcher determined that the less practice teenagers had driving, the more violations they received during the first year after receiving their driver’s license.This finding is an example of which of the following?
a. A positive correlation
b. Statistical significanceThis
c. A spurious correlation
d. An illusory correlation
e. A negative correlation

Answers

Answer:

c

Explanation:

have a game that is not going to be a good time for you to get your v back in the loud and I would like to join your team and I would like to

According to the data presented in the map, which of the following conclusions can be drawn about the population distribution in Pakistan?

Pakistan has a low physiological density.
Arithmetic density is highest in major cities.
Agricultural density is highest in the southwest region.
Population density is concentrated in mountainous regions.
Physiological density is highest in the northeast.

Answers

Answer:

Arithmetic density is highest in major cities.

"The wise and noble Queen Blanche lof Castle).
the mother of King Louls IX of France (reigned 1226-1270), had Infinite goodness. She ruled the kingdom of France with such skill and care until her son was old enough to accede to the throne that no man could have done better Even when he was grown up, she proved herself so worthy that she remained at the head of his advisors and nothing was decided without her consent. She even followed her son into battle
On one occasion during the king's minority, she
scolded the Count of Champagne for having rebelled against his lord, the king.
On hearing her wise words, he gazed at Queen Blanche and was captivated by her great virtue and respectability, despite the fact that she had long passed the flower of her youth. The count was so suddenly overcome with love for her that he didn't know what to do. From that moment on, he adored her for the rest of his life"
Explain one economic system that existed in Europe in this passage

Answers

HumbertoFitzhugh

   Ace

   3.8K answers

   21.1M people helped

Answer:

The claim that the author is making in the given paragraph is when she writes that Queen Blanche proved herself to be so worthy that even when her son was enthroned, she used to advice him and no decision was made without her consent.

Explanation:

The given excerpt is taken from 'The Book of the City of Ladies' written by Christine de Pizan. The book talks about those ladies who left their marks in history, to conlfict Meun's comment about women.

In the given passage, the claim that Pizan has made is when she backed up her argument about Queen Blanche to be a skillful and caring ruler of Castile. She claimed that she was so skillful and wise that even after her son was enthroned, she became his advisor and not a single decision was made without her consent.

'Even when he was grown up, she proved herself so worthy that she remained at the head of his advisors and nothing was decided without her consent.'

How does information assurance guarantee authenticity?

Every individual working with an information system has specific responsibilities for information assurance.

It is no longer possible for digitally sent materials to be denied.

Using a system requires proof of identity through the use of passwords, keycards, or biological verification.

Answers

Information assurance guarantee authenticity by: C. using a system requires proof of identity through the use of passwords, keycards, or biological verification.

What is information assurance?

Information assurance can be defined as technical and managerial measures that are designed and developed to assure information and risks that are related to the usage, processing, storage, and transmission of information are confidential, secured, properly control, authentic, and readily availability.

This ultimately implies that, information assurance includes the protection of data integrity, authenticity, availability, confidentiality, non-repudiation of user data.

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i got it wrong last time what do you think it is

Answers

C) hereditary indicates the statistical extent in which genes contribute to a trait

Case Study # 2 Joe’s co-op placement is at the local bank branch as a teller trainee. When he started his placement, he was required to sign an oath of confidentiality. By signing his oath, he agreed that he would not reveal any information about customers’ accounts. One day, while working with the bank’s loan officer, he discovered that his next door neighbour owed a large amount of money to the bank and he had fallen behind in his payments. If he does not make a payment within days, the bank will repossess his house which had been put up as collateral for the large loan. A friend of Joe’s mother has been looking for a good buy on a house in their neighbourhood. This would be a great opportunity for Joe to help out his mother’s friend.
What should he do?

Answers

Since the would be a great opportunity for Joe to help out his mother’s friend and because Joe is bound by the confidentiality agreement, he need to be silent and wait till the bank has repossess the property before telling the Mothers friend, By then, he is not bond anymore as the property will be opened for sale.

What is Nondisclosure contract?

A  confidentiality agreement or non-disclosure agreement is a formal contract between two or more parties that specifies the sensitive information, knowledge, or material that the parties intend to disclose for certain purposes while limiting access to it.

Therefore, Since the would be a great opportunity for Joe to help out his mother’s friend and because Joe is bound by the confidentiality agreement, he need to be silent and wait till the bank has repossess the property before telling the Mothers friend, By then, he is not bond anymore as the property will be opened for sale.

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I don't understand this could someone please explain this to me?

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The velocity of the sprinter at t = 0.8s is goven as 3.52m/s and at the end of the race the velocity would be 0

What is velocity?

This is the term that is used to refer to the speed of a body that is at a given direction. It is the rate of change of the body's location with respect to time.

How to find the velocity at 0.8s

= 0.8s x 4.4m/s

= 3.52m/s

2. At the end of the race the velocity would be 0 because the speed would have dropped to the barest minimum.

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Complete question

A sprinter explodes out of the starting block with an acceleration of +4.4 m/s², which she sustains for 0.8 s. Then, her acceleration drops to zero for the rest of the race.

(a) What is her velocity at t = 0.8 s.

x m/s

(b).What.is.her..velocity at the end of the race?

m/s

Enter a number.

(a)
A jet airliner moving initially at 701 mph to the east where there is no wind moves into a region where the wind is blowing at 848 mph in a direction 13◦ north of east.
What is the new speed of the aircraft with respect to the ground? (b)What is the direction of the aircraft (use coun- terclockwise from due East as the positive an- gular direction, between the limits of −180◦ and +180◦)?

Answers

Answer:

1546.1 mph

Explanation:

Let's take the east direction as positive x-direction and north as positive y-direction.

The components of the initial velocity of the jet are:

vx= 858 mph

vy= 0

while the components of the wind's velocity are

ax=  (777)(cos 38)=  612.2 mph

ay= (777)(sin38)= 478.4 mph

So, the components of the new velocity of the jet are:

vx=vx+ax= 858+612.2= 1470.2 mph

vy=vy+ay=0 + 478.4 = 478.4mph

And therefore, the new speed is the magnitude of the new velocity, so:

v= vx2+vy2= (1470.2)+(478.4)= 1546.1 mph

A researcher who had a role in designing a new medication for headaches wants to promote it. She unconsciously suggests to those who took her medication that they are feeling better than those who had an alternative medication. This demonstrates which of the following phenomena?

a. Experiment bias
b. Placebo effect
c. Spurious correlation
d. Hindsight bias
e. Confirmation bias

Answers

Experiment bias demonstrates the following phenomena. Thus, option A is correct.

Who is the researcher?

Someone who conducts research is a researcher. This signifies that the person conducts some type of research on a certain topic, which also suggests that some previously acquired knowledge may be further examined.

As the researcher has developed the medicine then that research will be buyers to that experimental it will result in a negative effect as it is the case of medication to the person need to do a phenomenon prescribe medicine which is not biased. Therefore, option A is the correct option.

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Which concept MOST closely relates to the geographic idea of place?

a. Driving distances
b. How humans have impacted the natural environment
c. Land measurement
d. Physical attributes
e. Satellite data

Answers

The concept that is closely related to the geographic idea of place is option d. Physical attributes.

Check more about the geographic  idea below

What is the geographic concept of place?

Geographers are known to be experts who define place as an environment that is made up of physical as well as human attributes or characteristics of that given  location.

The physical features is one that can be made up of  the local climate, rivers, as well as the valleys. The human characteristics is one that is made up of the culture of the people that are residence in that place and the interact among them.

Note that Physical geography is one that goes deeper and inter-links with those of landforms, water, soils, climate, and others.

Therefore, based on the above, one can say that the concept that is closely related to the geographic idea of place is option d. Physical attributes.

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Physiological density measures

the number of people per arable square mile
the number of farmers per square mile of farmland
the number of families per square mile
the number of factories per square mile of city
the number of people per inhabitable square mile

Answers

Physiological density measures: A. the number of people per arable square mile.

What is population density?

Population density can be defined as the total number of persons (people) that are living in a population per unit area.

How to calculate population density?

Mathematically, population density can be calculated by using this formula:

Population density = Population size/land area

What is physiological density?

Physiological density can be defined as a measure of the total number of people per the total amount of farmable land (arable square mile).

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How is our current understanding of psychology and psychological phenomenons skewed?

Answers

The current understanding of psychology and psychological phenomena is skewed by the changing of time and the amount of information.

What is psychology?

Psychology is the study of the mind and the behavior of organisms. This includes all organisms, like plants, animals, and other living organisms. They study the working of the mind and by studying the mental processes,  they understand how the human mind works and how people behave in different situations.

Thus, the progression of time and the volume of available knowledge have distorted our understanding of psychology and psychological processes.

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please answer its big part of my grades!

Answers

Answer: Zygote Intrafallopian Transfer

Explanation:

(IVF)

A psychologist who focuses on people and work is a(n) ____ psychologist.

A. Developmental
B. Educational
C. Community
D. Industrial/organizational

Answers

Answer:

D. Industrial/organizational

Explanation:

D because they focus on work in the industry and people in organizations

Intelligence tests are valid if they measure the abilities they claim to measure T/F

Answers

Answer:

True

Explanation:

The statement that Intelligence tests are valid if they measure the abilities they claim to measure is True.

What is the true statement?

It is true to reach the conclusion that intelligence tests are valid only when they measure what they are meant to test. For example, if an intelligence test is meant to test verbal abilities, or attention, language or emotional skills and it does not reach that objective, then it is not a valid test.

So, the statement that Intelligence tests are valid if they measure the abilities they claim to measure can be said to be True.

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What is the role of these bacteria in the nitrogen cycle?

Answers

Answer:

The role of these bacteria in the nitrogen cycle is to convert free nitrogen into usable nitrogen.

please answer for 100 points

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Teratogen is an agent in which it causes an abnormality following fatal exposure during pregnancy
from the question ,

Rona is pregnant and using old paints.

Lead paint now can be fatal to her uterus and is example for TERATOGEN.

Pathogen is not the right one
And Carcinogen causes cancer!
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Please please please help please asap!!! Pls help me this is due Monday 9/12/22 Its about statements in geometry and Im confused Profit maximization fails to provide an appropriate goal for financial managers because. Cedar links recreation inc. Has issued ten-year zero-coupon bonds with a $1,000 face value. If the bonds are currently selling for $514. 87, what is the yield to maturity?. URGENNTTT !!! ITS EASY BUT I NEED CLARIFICATION a contradiction or repudiation write 1/16 as a power of 2 The length of a rectangle is 3 times the width. The perimeter is 96 cm. Find the length. There is an upside to linking the s&op process with supply chain partners. For one thing, __________ can help firms do a better job of improving overall supply chain performance, particularly in the area of cost. Which are numbers are rational? The height of a binary search tree is given as h. what is the maximum number of nodes in the tree? Which aspects of 'exploration and discovery' lead lynn margulis to begin her research into the theory of endosymbiosis? A sail boat is being blown with a constnalt velocity. whats the direction of the net force? Assume that all of the objects in the diagram are solid and made of the same material.In Set B, explain the difference in the magnitudes of the gravitational forces between the two pairs of objects. If the compressive strength of normal weight concrete is 4 ksi, then, according to aci 318-19, the modulus of elasticity is approximately ______ ksi. The serous membrane is a double-layered membrane created by two separate membranes. True or false?. Write each equation in y intercept form x+2y=10 What is a faction, and which one interfere with the properietary government A schools cafeteria kitchen has a large, walk-in refrigerator where food is stored for lunch later in the week. Which cell organelle has a function that is similar to the refrigerator?. Which equation represents the ellipse with vertices located at (3,-3) and (3,-13) and foci at (3,-5) and (3,-11)?