We are doing an experiment to discover if sugar augments short term memory. We really need help!|||Your control group could receive a placebo (e.g., a cookie prepared with a sugar substitute). Your experimental group receives a similar cookie, but one prepared in a traditional way (with sugar). Have both groups take a short term memory test both before and after the cookie. Then compare the results.
Good luck,
~Dr. B.~
Saturday, December 17, 2011
What is the control group and the controlled variables in this experiment?
Agricultural scientists were concerned about the effect of air pollution, sulfur dioxide in particular, on soybean production in fields adjacent to coal-powdered power plants. Based on initial investigations, they proposed that sulfur dioxide in high concentrations would reduce reproduction in soybeans. They designed a experiment to test this hypothesis. In this experiment 48 soybean plants, just beginning to produce flowers, were divided into two groups, treatment, and no treatment. The 24 treated were divided into four groups of 6. One group of 6 treated plants was placed in a fumigation chamber and exposed to 0.6 ppm of sulfur dioxide for 4 hours to stimulate sulfur dioxide emissions from a power plant. The experiment was repeated on the remaining three treated treated groups. The no-treatment plants were returned to the greenhouse. When the beans matured, the number of bean pods, the number of seeds per pod, and weight of pods were determined for each plant.|||The controlled variable is the exposure vs. non-exposure to sulfur dioxide. The control group i.e. the no-treatment plants, was not exposed to sulfur dioxide.
What is the control group of my science experiment?
What does the effect of salt have on the melting of ice.|||the control group would just be a piece of ice in a specific dish at the same temperature each time you perform the experiment. one thing too you may want to think about is to make the ice from the same amount of water. there's a lot of variables to think about like temperature, size of ice or water it's made from, the dish the ice sits in, etc.
good luck.|||Well any ice that DOES NOT have any salt on it is the control group (also known as placebo)|||The control would be where the dependent variable has a change of 0. You are testing whether salt affects the melting point, so the control is what the melting point is when there is no salt present.|||Set up 2 experiments, exactly the same. One add salt to the ice and the other, DONT add salt. then you monitor the melting rates of the ice in the two setups. The one without salt is the control. You'll compare the results of the experimental (with salt) to the control (no salt)
good luck.|||Well any ice that DOES NOT have any salt on it is the control group (also known as placebo)|||The control would be where the dependent variable has a change of 0. You are testing whether salt affects the melting point, so the control is what the melting point is when there is no salt present.|||Set up 2 experiments, exactly the same. One add salt to the ice and the other, DONT add salt. then you monitor the melting rates of the ice in the two setups. The one without salt is the control. You'll compare the results of the experimental (with salt) to the control (no salt)
What is a control group And scincetific Method?
I NEED to know what it is for my homework so PLEASE help me!!!!!!!|||the control group is the group in which a variable (the one being tested) is not manipulated. it is the group where you usually know what happens. for instance:
you have two cats that eat the same food and are the same breed age and gender. you buy new food for one and keep other on the same old food. the cat on the old food is the control.|||A group that is treated exactly the same as the experimental group. A scientific method refers to a body of techniques for investigating phenomena, aquireing new knowledge, or correcting and integrating previous knowledge.|||control group is when you do and experiment during the scientific method, two groups one called the CONTROL group does the experiment regular while the other group adds anything to it.|||7th grade math homework, am i right.
you have two cats that eat the same food and are the same breed age and gender. you buy new food for one and keep other on the same old food. the cat on the old food is the control.|||A group that is treated exactly the same as the experimental group. A scientific method refers to a body of techniques for investigating phenomena, aquireing new knowledge, or correcting and integrating previous knowledge.|||control group is when you do and experiment during the scientific method, two groups one called the CONTROL group does the experiment regular while the other group adds anything to it.|||7th grade math homework, am i right.
What's the difference between a control and a control group in biology?
Is there any difference? If so, what?|||Basically the same thing. When you study groups lets say certain drug in mice we have the treatment group and a control group as baseline to compare to treatment to see if there is effect. So geoups you use when you use more individuals
Now control you use for example a certain gens are found in your PCR product you always use a marker or control to see if your PCR was succesful usely GADPH (household gen has to with glucose breaking down). But also when you want to test if amylase breask down starch you use one starch with amylase group and one without.
So groups you use when you have groups and controls when you compare single factors
Now control you use for example a certain gens are found in your PCR product you always use a marker or control to see if your PCR was succesful usely GADPH (household gen has to with glucose breaking down). But also when you want to test if amylase breask down starch you use one starch with amylase group and one without.
So groups you use when you have groups and controls when you compare single factors
Did anyone see the independent voter control group results from the debate last night?
I missed the debate on TV and listened to it on the car radio. Did anyone pay attention to who the independents thought won the debate last night?|||The control groups on different stations produced different results as you can imagine. For instance on Fox the control group was overwhelmingly in favor of Palin, like 80-20. On CNN it was 50-30-20 for Biden. So depending on your perspective is what your take on the winner and loser is. What I did find compelling was the democrats immediately went into attack mode using phrases, like hokey, scripted, tight, uninformed, and when pressed on her presence, they admitted that she was relaxed, prepared, and confident. Which means, they really know she won, but would never admit to it.|||I did. You didn't miss anything important, that's for sure.....just that once again the media caters to idiots with a 56 IQ instead of to the general population. I wonder when the media will recognize that most Americans aren't stupid?
The sample size of the "independant", undecided "group" of voters was, at most, 10-15 people in a single room. That right there makes any results they presented thereafter completely statistically invalid, even assuming that those 15 people were indeed "undecided".
Having 15 people attempt to represent the views of over 100,000,000 voters is bordering on insanity if not completely irrelevant. I'm surprised they even ran that whole sham of a line-graph thing on TV at all.
I know I can decide for myself who I thought did a better job in the debate without needing to see what 15 other people may have thought. You can too. Hopefully some day the media can figure that out.|||Only a few people out of that group have now committed to one side or the other. Others are still undecided. And during the debate, the ratings were interesting. Lots of people liked Biden from undecided voters but his ratings also dropped when he carried on a little about nothing. And as for Palin, her ratings dropped BIGTIME when she said how she鈥檇 answer the question HER way and not the way the moderator or Biden wanted her to. And she babbled about her experience as opposed to answering the question. Ratings went from about 75 (from where Biden had just finished) and dropped as low as 40.
I know this is just a little mini consensus through that undecided group. But I found it VERY interesting! They seemed to be fairly split and were still undecided for the most part.
But it did say that both candidates were well liked and because of their debating, their ratings went up for that. Both increased 50% give or take.
I actually found the debate to be done very well. It was better than the Presidential that we had last week. (My opinion)
|||If you go by any poll you're crazy. They're all skewed toward the way that particular outlet wants it to go. For all you know they throw out some results so it goes a particular way. Go with what you feel and know. Also, do your own research through multiple sources and records. Don't just go with the flow....|||I don't know who you are referring to, however the only national poll reported thus far of UNCOMMITTED voters, a scientific random sample not some hokey unscientific TV nonsense, found that 46% thought Joe Biden did better, 21% thought Palin did better and 33% thought it was a tie.|||CNN had that squiggly line thing broken down to MEN and WOMEN.
Funny but to me it proved that WOMEN were the more intelligent of the species.
Men only reacted to Sarah Palin. Anything she said made that "line rise". Maybe that dial was attached to their little soldier.|||Depends on the station you watched.
The independants that Fox had on were about 75% for McCain after the debate.
The ones on CNN were 49% for McCain afterwards.
The Ones on MSNBC we 5% for McCain afterwards.|||nearly everyone thought Biden won the debate but Palin did well (beat expectations)
I watched ABC, NBC, and PBS. People on NPR this morning are also saying Biden won.|||All independent polls have shown Biden winning.
Also note of interest: the fox news poll which was put out to the country as a whole i think, not only independents, showed Biden winning|||Independents overwhelmingly thought Palin won it.|||The 3 white women supported and talk up Palin. The 1 black woman didn't. At least that is how it was on the Today show.|||I think they both did good. but Palin showed that she can handle VP and that she is NOT dumb!!|||Yes. They overwhelmingly thought Palin won.
The sample size of the "independant", undecided "group" of voters was, at most, 10-15 people in a single room. That right there makes any results they presented thereafter completely statistically invalid, even assuming that those 15 people were indeed "undecided".
Having 15 people attempt to represent the views of over 100,000,000 voters is bordering on insanity if not completely irrelevant. I'm surprised they even ran that whole sham of a line-graph thing on TV at all.
I know I can decide for myself who I thought did a better job in the debate without needing to see what 15 other people may have thought. You can too. Hopefully some day the media can figure that out.|||Only a few people out of that group have now committed to one side or the other. Others are still undecided. And during the debate, the ratings were interesting. Lots of people liked Biden from undecided voters but his ratings also dropped when he carried on a little about nothing. And as for Palin, her ratings dropped BIGTIME when she said how she鈥檇 answer the question HER way and not the way the moderator or Biden wanted her to. And she babbled about her experience as opposed to answering the question. Ratings went from about 75 (from where Biden had just finished) and dropped as low as 40.
I know this is just a little mini consensus through that undecided group. But I found it VERY interesting! They seemed to be fairly split and were still undecided for the most part.
But it did say that both candidates were well liked and because of their debating, their ratings went up for that. Both increased 50% give or take.
I actually found the debate to be done very well. It was better than the Presidential that we had last week. (My opinion)
|||If you go by any poll you're crazy. They're all skewed toward the way that particular outlet wants it to go. For all you know they throw out some results so it goes a particular way. Go with what you feel and know. Also, do your own research through multiple sources and records. Don't just go with the flow....|||I don't know who you are referring to, however the only national poll reported thus far of UNCOMMITTED voters, a scientific random sample not some hokey unscientific TV nonsense, found that 46% thought Joe Biden did better, 21% thought Palin did better and 33% thought it was a tie.|||CNN had that squiggly line thing broken down to MEN and WOMEN.
Funny but to me it proved that WOMEN were the more intelligent of the species.
Men only reacted to Sarah Palin. Anything she said made that "line rise". Maybe that dial was attached to their little soldier.|||Depends on the station you watched.
The independants that Fox had on were about 75% for McCain after the debate.
The ones on CNN were 49% for McCain afterwards.
The Ones on MSNBC we 5% for McCain afterwards.|||nearly everyone thought Biden won the debate but Palin did well (beat expectations)
I watched ABC, NBC, and PBS. People on NPR this morning are also saying Biden won.|||All independent polls have shown Biden winning.
Also note of interest: the fox news poll which was put out to the country as a whole i think, not only independents, showed Biden winning|||Independents overwhelmingly thought Palin won it.|||The 3 white women supported and talk up Palin. The 1 black woman didn't. At least that is how it was on the Today show.|||I think they both did good. but Palin showed that she can handle VP and that she is NOT dumb!!|||Yes. They overwhelmingly thought Palin won.
What is the dependant variable,independat variable and the control group?
bart beleives that mice exposed to radiowaves will become extra srong. he decides to perform this experiment by placing 10 mice that had not been exposed. his test consisted of a heavy block of wood that blocked the mouse food. he found that 8 out of 10 mice could move the block. 7 out of 10 of the other mice couldnt.|||An independent variable is a factor that is manipulated in an experiment. The experimenter controls whether or not subjects are exposed to the independent variable. The dependent variable is measured to determine if the manipulation of the independent variable had any effect. For example, to test a hypothesis that eating carrots improves vision, the experimenter would manipulate whether or not subjects ate carrots. Thus, eating carrots is the independent variable. Each subject鈥檚 vision would be tested to see if carrot eating had any effect. Thus, vision is the dependent variable. The subjects assigned to eat carrots are in the experimental group, whereas subjects not eating carrots are in the control group.
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