Question
A research study is valid if the researchers are __________.(1 point)
Responses
unbiased and kind
unbiased and kind
objective and logical
objective and logical
popular and reliable
popular and reliable
thorough and well known
When you are conducting your own investigations, what is a good way to ensure your results are reliable?(1 point)
Responses
stick with results that support your hypothesis
stick with results that support your hypothesis
repeat the investigation multiple times
repeat the investigation multiple times
type your results up neatly on a computer
type your results up neatly on a computer
keep focused on the ideas you are trying to prove
If you were designing an experiment on the growth of pea plants, what would be a way to ensure with some validity that you had improved the growth of pea plants with a certain kind of fertilizer?(1 point)
Responses
You could have another person repeat the same experiment with the same materials.
You could have another person repeat the same experiment with the same materials.
You could have a control set up that shows how the peas grow with plain soil or a commonly used fertilizer.
You could have a control set up that shows how the peas grow with plain soil or a commonly used fertilizer.
You could measure not just the growth, but how green the leaves were and how good the peas tasted.
You could measure not just the growth, but how green the leaves were and how good the peas tasted.
You could repeat the experiment multiple times and average the results.
If you are searching for valid information on the existence of UFOs, which of the following sources would be the best choice? (1 point)
Responses
a peer-reviewed scientific journal
a peer-reviewed scientific journal
a magazine that regularly includes articles on UFOs
a magazine that regularly includes articles on UFOs
a personal blog by someone who does not believe in UFOs
a personal blog by someone who does not believe in UFOs
a personal blog by someone who believes in UFOs
People are exposed to radio waves 24 hours a day with little to no effect on our cells. Which situation would likely cause a higher risk to people? (1 point)
Responses
exposure to radiation with a much higher frequency
exposure to radiation with a much higher frequency
exposure to the same radiation for twice as long
exposure to the same radiation for twice as long
exposure to twice the intensity of radio waves
exposure to twice the intensity of radio waves
exposure to radiation with much longer wavelengths
Imagine researchers wanted to test different brands of sunscreen on pigs. Which of the comparisons would have the greatest effect on our ability to predict the efficacy of the sunscreen on humans?(1 point)
Responses
Pigs and humans have similar amounts of hair covering their bodies.
Pigs and humans have similar amounts of hair covering their bodies.
Pigs and humans have very similar fat percentages in their bodies.
Pigs and humans have very similar fat percentages in their bodies.
Pigs have immune systems that are very similar to those of humans.
Pigs have immune systems that are very similar to those of humans.
Pigs generally have slightly less mass than humans.
UVC is very dangerous ultraviolet light that is blocked by the atmosphere. Ten minutes of exposure to UVC with a wavelength of 150 nm would do measurable damage to human cells.
Which of the following exposures would likely reduce the effects to 20% of that damage?
(1 point)
Responses
2 minutes of exposure to UVC (150 nm).
2 minutes of exposure to UVC (150 nm).
0.5 minutes of exposure to UVC (150 nm)
0.5 minutes of exposure to UVC (150 nm)
10 minutes of exposure to extreme ultraviolet radiation (30 nm)
10 minutes of exposure to extreme ultraviolet radiation (30 nm)
10 minutes of exposure to red light (750 nm)
Sunscreen is important for small children and adults, to prevent UV radiation from the sun from damaging cells. Which comparison would be the most important consideration when predicting the effects of sunlight on small children based on studies with adults?(1 point)
Responses
Small children have less hair on their bodies.
Small children have less hair on their bodies.
A child has a much smaller surface area exposed to the sun.
A child has a much smaller surface area exposed to the sun.
Small children are unable to make decisions to get out of the sun when they feel they are burning.
Small children are unable to make decisions to get out of the sun when they feel they are burning.
Cells repair themselves much faster in small children than adults.
Responses
unbiased and kind
unbiased and kind
objective and logical
objective and logical
popular and reliable
popular and reliable
thorough and well known
When you are conducting your own investigations, what is a good way to ensure your results are reliable?(1 point)
Responses
stick with results that support your hypothesis
stick with results that support your hypothesis
repeat the investigation multiple times
repeat the investigation multiple times
type your results up neatly on a computer
type your results up neatly on a computer
keep focused on the ideas you are trying to prove
If you were designing an experiment on the growth of pea plants, what would be a way to ensure with some validity that you had improved the growth of pea plants with a certain kind of fertilizer?(1 point)
Responses
You could have another person repeat the same experiment with the same materials.
You could have another person repeat the same experiment with the same materials.
You could have a control set up that shows how the peas grow with plain soil or a commonly used fertilizer.
You could have a control set up that shows how the peas grow with plain soil or a commonly used fertilizer.
You could measure not just the growth, but how green the leaves were and how good the peas tasted.
You could measure not just the growth, but how green the leaves were and how good the peas tasted.
You could repeat the experiment multiple times and average the results.
If you are searching for valid information on the existence of UFOs, which of the following sources would be the best choice? (1 point)
Responses
a peer-reviewed scientific journal
a peer-reviewed scientific journal
a magazine that regularly includes articles on UFOs
a magazine that regularly includes articles on UFOs
a personal blog by someone who does not believe in UFOs
a personal blog by someone who does not believe in UFOs
a personal blog by someone who believes in UFOs
People are exposed to radio waves 24 hours a day with little to no effect on our cells. Which situation would likely cause a higher risk to people? (1 point)
Responses
exposure to radiation with a much higher frequency
exposure to radiation with a much higher frequency
exposure to the same radiation for twice as long
exposure to the same radiation for twice as long
exposure to twice the intensity of radio waves
exposure to twice the intensity of radio waves
exposure to radiation with much longer wavelengths
Imagine researchers wanted to test different brands of sunscreen on pigs. Which of the comparisons would have the greatest effect on our ability to predict the efficacy of the sunscreen on humans?(1 point)
Responses
Pigs and humans have similar amounts of hair covering their bodies.
Pigs and humans have similar amounts of hair covering their bodies.
Pigs and humans have very similar fat percentages in their bodies.
Pigs and humans have very similar fat percentages in their bodies.
Pigs have immune systems that are very similar to those of humans.
Pigs have immune systems that are very similar to those of humans.
Pigs generally have slightly less mass than humans.
UVC is very dangerous ultraviolet light that is blocked by the atmosphere. Ten minutes of exposure to UVC with a wavelength of 150 nm would do measurable damage to human cells.
Which of the following exposures would likely reduce the effects to 20% of that damage?
(1 point)
Responses
2 minutes of exposure to UVC (150 nm).
2 minutes of exposure to UVC (150 nm).
0.5 minutes of exposure to UVC (150 nm)
0.5 minutes of exposure to UVC (150 nm)
10 minutes of exposure to extreme ultraviolet radiation (30 nm)
10 minutes of exposure to extreme ultraviolet radiation (30 nm)
10 minutes of exposure to red light (750 nm)
Sunscreen is important for small children and adults, to prevent UV radiation from the sun from damaging cells. Which comparison would be the most important consideration when predicting the effects of sunlight on small children based on studies with adults?(1 point)
Responses
Small children have less hair on their bodies.
Small children have less hair on their bodies.
A child has a much smaller surface area exposed to the sun.
A child has a much smaller surface area exposed to the sun.
Small children are unable to make decisions to get out of the sun when they feel they are burning.
Small children are unable to make decisions to get out of the sun when they feel they are burning.
Cells repair themselves much faster in small children than adults.
Answers
GPT-4o mini
Here are the most suitable responses based on your questions:
1. A research study is valid if the researchers are **objective and logical**.
2. When conducting your own investigations, a good way to ensure your results are reliable is to **repeat the investigation multiple times**.
3. If you were designing an experiment on the growth of pea plants, a way to ensure some validity that you improved the growth with a certain kind of fertilizer is that **you could have a control set up that shows how the peas grow with plain soil or a commonly used fertilizer**.
4. If you are searching for valid information on the existence of UFOs, the best source would be **a peer-reviewed scientific journal**.
5. People are exposed to radio waves 24 hours a day with little to no effect on our cells. The situation that would likely cause a higher risk to people is **exposure to radiation with a much higher frequency**.
6. If researchers wanted to test different brands of sunscreen on pigs, the comparison that would have the greatest effect on our ability to predict the efficacy on humans is that **pigs have immune systems that are very similar to those of humans**.
7. To reduce the effects of UVC exposure to 20% of that damage, the answer would be **0.5 minutes of exposure to UVC (150 nm)**.
8. When predicting the effects of sunlight on small children based on studies with adults, the most important consideration is that **small children are unable to make decisions to get out of the sun when they feel they are burning**.
These answers provide a clear understanding of research validity, reliability, experimental design, and factors affecting exposure to UV radiation in different populations.
1. A research study is valid if the researchers are **objective and logical**.
2. When conducting your own investigations, a good way to ensure your results are reliable is to **repeat the investigation multiple times**.
3. If you were designing an experiment on the growth of pea plants, a way to ensure some validity that you improved the growth with a certain kind of fertilizer is that **you could have a control set up that shows how the peas grow with plain soil or a commonly used fertilizer**.
4. If you are searching for valid information on the existence of UFOs, the best source would be **a peer-reviewed scientific journal**.
5. People are exposed to radio waves 24 hours a day with little to no effect on our cells. The situation that would likely cause a higher risk to people is **exposure to radiation with a much higher frequency**.
6. If researchers wanted to test different brands of sunscreen on pigs, the comparison that would have the greatest effect on our ability to predict the efficacy on humans is that **pigs have immune systems that are very similar to those of humans**.
7. To reduce the effects of UVC exposure to 20% of that damage, the answer would be **0.5 minutes of exposure to UVC (150 nm)**.
8. When predicting the effects of sunlight on small children based on studies with adults, the most important consideration is that **small children are unable to make decisions to get out of the sun when they feel they are burning**.
These answers provide a clear understanding of research validity, reliability, experimental design, and factors affecting exposure to UV radiation in different populations.