If you want to have a scientifically valid sample for a study you are doing?

If you want to have a scientifically valid sample for a study you are doing?
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What are scientifically valid sample?

Description : What are scientifically valid sample?

Last Answer : Need answer

Selection of sample in this study is an important step in doing research. A good sample is: a. One that includes both male and female nurses b. One that shows a balance in the number of nurses from hospital and school c. One that is representative of the population from which it was selected d. One that can be manipulated and controlled

Description : Selection of sample in this study is an important step in doing research. A good sample is: a. One that includes both male and female nurses b. One that shows a balance in the number of ... is representative of the population from which it was selected d. One that can be manipulated and controlled

Last Answer : c. One that is representative of the population from which it was selected

Scientifically, hypothetically, or in plausible fiction, is there any possible fluke of the genetic code or something similar which could cause a person to stop aging?

Description : Scientifically, hypothetically, or in plausible fiction, is there any possible fluke of the genetic code or something similar which could cause a person to stop aging?

Last Answer : Death? You will stop aging on the spot when death happens.

What is scientifically sound, "everything in moderation" or "zero is the amount if it's bad for you"?

Description : What is scientifically sound, "everything in moderation" or "zero is the amount if it's bad for you"?

Last Answer : Ben Franklin quote, “Moderation in all things—including moderation.” I agree.

Scientifically speaking, where would heaven be? (DETAILS )

Description : Scientifically speaking, where would heaven be? (DETAILS )

Last Answer : answer:Did you not know the prophecy foretold by Sister Belinda of Carlisle? Ooh baby do you know what that’s worth Ooh heaven is a place on earth… Yeah…i’ll get my coat.

Scientifically speaking, how much longer could the human race survive before extinction?

Description : Scientifically speaking, how much longer could the human race survive before extinction?

Last Answer : How would anyone come up with a “scientific” answer to such a question? You can dial up a psychic or consult your dog, and an opinion from either would be equally probable.

Are fish oil pills scientifically proven to be beneficial for the heart?

Description : Are fish oil pills scientifically proven to be beneficial for the heart?

Last Answer : answer:So far, no. Source Fatty fish can help with stroke prevention if you can find untainted fish and safe fishing methods. An excerpt from the article: Evidence does not support a beneficial role ... fish that contain long chain omega-3 fatty acids does appear to decrease the risk of stroke.

Can someone please explain the crystal tears in this video scientifically to me?

Description : Can someone please explain the crystal tears in this video scientifically to me?

Last Answer : answer:After viewing this video, I have come to the conclusion that is not real. Why? If this occured back in 1996, how come the world has not jumped on “the strange occurence”? I only wish someone on Fluther can prove me wrong.

A universe within a universe, is it scientifically possible?

Description : A universe within a universe, is it scientifically possible?

Last Answer : That is the brane part of M-Theory, in which our universe is just one of countless branes floating around in an 11 dimensional hyperverse. In fact, a collision with another brane is speculated to be the cause of the big bang in our universe.

If it were scientifically possible to determine that your unborn child had an 87% chance at becoming a psychopath, but you had the option of genetically correcting it, would you do it?

Description : If it were scientifically possible to determine that your unborn child had an 87% chance at becoming a psychopath, but you had the option of genetically correcting it, would you do it?

Last Answer : What are the list of things that could potentially go wrong with the experimental procedure? That would have a lot of weight in my decision.

Scientifically or genetically speaking, is it possible to gain "super/powers"?

Description : Scientifically or genetically speaking, is it possible to gain "super/powers"?

Last Answer : None of the super powers depicted in comic book superheroes are realistic or even physically plausible, other than exceptional strength and speed such as we see in acrobatic athletes. No amount of genetic ... will give you x-ray vision, make you invisible, able to leap tall buildings, or fly.

Scientifically, will blood-baths make you even more beautiful?

Description : Scientifically, will blood-baths make you even more beautiful?

Last Answer : Got any links?

Can you scientifically rule out sentient extraterrestrials?

Description : Can you scientifically rule out sentient extraterrestrials?

Last Answer : Have you heard of the Drake equation? I think you’d find it interesting.

Do you often curious about how things scientifically work?

Description : Do you often curious about how things scientifically work?

Last Answer : How electricity, radio waves, television, the internet, and the telephone works have always held mystery.

What animals, other than humans, do we know (scientifically) have language?

Description : What animals, other than humans, do we know (scientifically) have language?

Last Answer : Depends on how you define language. Back in ye olde days when I took cognitive neuroscience in college, there was some amount of controversy. Is a bird’s warning call language? What about the honeybee dance?

Scientifically and biologically, how does caffeine alleviate certain kinds of headaches?

Description : Scientifically and biologically, how does caffeine alleviate certain kinds of headaches?

Last Answer : Caffine opens blood vessels, allowing more blood flow.

What hurts your brain, scientifically/philosophically/theologically?

Description : What hurts your brain, scientifically/philosophically/theologically?

Last Answer : Just thinking about the Universe (stars, black holes, infinity, darkness) trips me out. Then again, I love it!

Has there ever been a sci-fi story based in a world with a scientifically provable god?

Description : Has there ever been a sci-fi story based in a world with a scientifically provable god?

Last Answer : good idea!

What do people mean when they refer to a "litmus test" (non-scientifically speaking)?

Description : What do people mean when they refer to a "litmus test" (non-scientifically speaking)?

Last Answer : http://en.wikipedia.org/wiki/Litmus_test_(politics) comes from: http://en.wikipedia.org/wiki/Litmus_test_(chemistry) I think your example is a little flawed, litmus tests are usually administered before something is accepted. It’s basically a test that is either passed or failed.

Is this scientifically/medically possible? My mind is blown, if yes.

Description : Is this scientifically/medically possible? My mind is blown, if yes.

Last Answer : But reputable botanists say that was impossible because without LIGHT, the plant could not grow (so it smells like a hoax).

Did you know that there is a scientifically simple explanation why Brits & Aussies & Japanese drive on the "wrong" side of the car/road?

Description : Did you know that there is a scientifically simple explanation why Brits & Aussies & Japanese drive on the "wrong" side of the car/road?

Last Answer : Guess I should move to Australia.

Hopw would you scientifically prove the age of a creationist's universe?

Description : Hopw would you scientifically prove the age of a creationist's universe?

Last Answer : I don’t think creationism is falsifiable. One can always play “the God card”.

What are many people scientifically in denial about?

Description : What are many people scientifically in denial about?

Last Answer : The negative impacts of weed.

What are many people scientifically in denial about?

Description : What are many people scientifically in denial about?

Last Answer : The negative impacts of weed.

What are the scientifically proven effects of solar eclipse on human body?

Description : What are the scientifically proven effects of solar eclipse on human body?

Last Answer : Eye damage is a proven fact if you look directly at the sun during a total solar eclipse or even when a solar eclipse isn't happening. During the solar eclipse, you MUST wear special sunglasses that ... then you will need to put those special glasses back on. Keeping your eyes protected is key here.

What chiropractic programs use scientifically validated curiccula?

Description : What chiropractic programs use scientifically validated curiccula?

Last Answer : Unfortunately, there are no chiropractic programs that use scientifically validated curiccula. Chiropractic medicine is separate from mainstream medicine, and generally not evidence based.

Are there any scientifically proven weight managements pills which do not require a Rx?

Description : Are there any scientifically proven weight managements pills which do not require a Rx?

Last Answer : The only over-the-counter weight loss supplement approved by the FDA is Alli. When followed properly, using the drug along with a diet plan helps boost weight loss 30-50%.

Is the blood type A positive diet scientifically proven to be effective on improving one's health?

Description : Is the blood type A positive diet scientifically proven to be effective on improving one's health?

Last Answer : There isn't scientific proof that this diet really can improve a person's health. All individuals can benefit from a well balanced and healthy diet, but it doesn't depend upon their blood type.

Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature and correctly described? (a) Musca domestica - the common house lizard, a reptile (b) Plasmodium falciparum - a protozoan pathogen causing the most serious type of malaria. (c) Felis tigris - the Indian tiger, well protected in Gir forests. (d) E.coli - full name Entamoeba coli, a commonly occurring bacterium in human intestine.

Description : Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature and correctly described? (a) Musca domestica - the common ... ) E.coli - full name Entamoeba coli, a commonly occurring bacterium in human intestine.

Last Answer : (b) Plasmodium falciparum - a protozoan pathogen causing the most serious type of malaria

Operations Research uses models to help the management in determining its .................... scientifically. a. Policies b. Actions c. Both a and b d. None of these

Description : Operations Research uses models to help the management in determining its .................... scientifically. a. Policies b. Actions c. Both a and b d. None of these

Last Answer : c. Both a and b

The method in which a hypothesis is scientifically tested (a) Biographical method (b) Experimental method (c) Heuristic method (d) Project method

Description : The method in which a hypothesis is scientifically tested (a) Biographical method (b) Experimental method (c) Heuristic method (d) Project method

Last Answer : (b) Experimental method

Economics modes are (a) Based on some realistic assumptions ; (b) Based on hypothetical assumptions (c) Scientifically tested ; (d) Based on necessity

Description : Economics modes are (a) Based on some realistic assumptions ; (b) Based on hypothetical assumptions (c) Scientifically tested ; (d) Based on necessity

Last Answer : (a) Based on some realistic assumptions

Research is not considered ethical if it (A) tries to prove a particular point. (B) does not ensure privacy and anonymity of the respondent. (C) does not investigate the data scientifically. (D) is not of a very high standard.

Description : Research is not considered ethical if it (A) tries to prove a particular point. (B) does not ensure privacy and anonymity of the respondent. (C) does not investigate the data scientifically. (D) is not of a very high standard.

Last Answer : (B) does not ensure privacy and anonymity of the respondent.

10) A valid study: A)portrays the population being studied B)establishes a casual relationship between variables C)uses random sampling D)verifies expected results E)measures what it is supposed to

Description : 10) A valid study: A)portrays the population being studied B)establishes a casual relationship between variables C)uses random sampling D)verifies expected results E)measures what it is supposed to

Last Answer : E)measures what it is supposed to

In a sample study of 642 people, it was found that 514 people have a high school certificate. -Maths 9th

Description : In a sample study of 642 people, it was found that 514 people have a high school certificate. -Maths 9th

Last Answer : Total number of persons = 642 Number of persons with high school certificate = 514 therefore Required probability=514 / 642 =0.80

In a sample study of 642 people, it was found that 514 people have a high school certificate. -Maths 9th

Description : In a sample study of 642 people, it was found that 514 people have a high school certificate. -Maths 9th

Last Answer : Total number of persons = 642 Number of persons with high school certificate = 514 therefore Required probability=514 / 642 =0.80

In a sample study of 642 people, it was found that 514 people have a high school certificate. -Maths 9th

Description : In a sample study of 642 people, it was found that 514 people have a high school certificate. -Maths 9th

Last Answer : NEED ANSWER

In a sample study of 642 people, it was found that 514 people have a high school certificate. -Maths 9th

Description : In a sample study of 642 people, it was found that 514 people have a high school certificate. -Maths 9th

Last Answer : (d) The total number of people in sample study, n(S) = 642. The number of people who have high school certificate, n(E) = 514. So, the probability that the person selected has a high school certificate ... S)=514/642 = 0.8 Hence, the probability that the person has a high school certificate is 0.8.

The nonrandom sampling type that involves selecting a convenience sample from a population with a specific set of characteristics for your research study is called _____. a. Convenience sampling b. Quota sampling c. Purposive sampling d. Snowball sampling

Description : The nonrandom sampling type that involves selecting a convenience sample from a population with a specific set of characteristics for your research study is called _____. a. Convenience sampling b. Quota sampling c. Purposive sampling d. Snowball sampling

Last Answer : c. Purposive sampling

In a recent research study initiated by Tel-E-Fone Telecommunications, survey calls were made to a randomly selected group in which every member has an equal chance of selection. This type of sample selection is called A. Probability sample B. Convenience sample C. Judgment sample D. Quota sample E. Area sample

Description : In a recent research study initiated by Tel-E-Fone Telecommunications, survey calls were made to a randomly selected group in which every member has an equal chance of selection. This type of sample selection ... sample B. Convenience sample C. Judgment sample D. Quota sample E. Area sample

Last Answer : A. Probability sample

The University Book Shop selects 200 of its more than 8,000 customers to participate in a study on service quality in the shop. The Book Shop has established a ________ for use in its research: A)population B)field setting C)dependent grouping D)sample E)experiment

Description : The University Book Shop selects 200 of its more than 8,000 customers to participate in a study on service quality in the shop. The Book Shop has established a ________ for use in its research: A)population B)field setting C)dependent grouping D)sample E)experiment

Last Answer : D)sample

In a precise diet and nutrition study, you need to determine the average weight and average height of a group each to a precision of 1%. The minimum sample size required is w) 10 x) 100 y) 1000 z) 10,000

Description : In a precise diet and nutrition study, you need to determine the average weight and average height of a group each to a precision of 1%. The minimum sample size required is w) 10 x) 100 y) 1000 z) 10,000 

Last Answer : ANSWER: Z -- 10,000 

Which one of the following principles is not applicable to sampling? (A) Sample units must be clearly defined (B) Sample units must be dependent on each other (C) Same units of sample should be used throughout the study (D) Sample units must be chosen in a systematic and objective manner

Description : Which one of the following principles is not applicable to sampling? (A) Sample units must be clearly defined (B) Sample units must be dependent on each other (C) Same units of sample should be used throughout the study (D) Sample units must be chosen in a systematic and objective manner

Last Answer : (B) Sample units must be dependent on each other

Which is a more valid axiom: "be yourself" or "be whoever you want to be"?

Description : Which is a more valid axiom: "be yourself" or "be whoever you want to be"?

Last Answer : You can be whoever you want to be, but at the end, you must find that ‘whoever you want to be’ is who you really are. They aren’t contradictory statements. But it will be good to always go searching, because you’ll never really know who you are till you’ve tried being others.

What precautions will you take while doing the study of different parts of an embryo of a dicot seed?

Description : What precautions will you take while doing the study of different parts of an embryo of a dicot seed?

Last Answer : What precautions will you take while doing the study of different parts of an embryo of a dicot seed?

If you were doing a research study on sleep and student achievement which might be the hypothesis?

Description : If you were doing a research study on sleep and student achievement which might be the hypothesis?

Last Answer : The amount of sleep a student gets affects the students achievement

In milgrams study when did compliance or doing what experimeter asked drop?

Description : In milgrams study when did compliance or doing what experimeter asked drop?

Last Answer : What is the answer ?

Which of the following statements are true? a. The larger the sample size, the greater the sampling error b. The more categories or breakdowns you want to make in your data analysis, the larger the sample needed c. The fewer categories or breakdowns you want to make in your data analysis, the larger the sample needed d. As sample size decreases, so does the size of the confidence interval

Description : Which of the following statements are true? a. The larger the sample size, the greater the sampling error b. The more categories or breakdowns you want to make in your data analysis, the larger ... the larger the sample needed d. As sample size decreases, so does the size of the confidence interval

Last Answer : b. The more categories or breakdowns you want to make in your data analysis, the larger the sample needed