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Why must a controlled experiment have one manipulated variable?
Wiki User
∙ 10y ago
a controlled experiment must have only one manipulated variable becuase if the experiment had multiple manipulated variables then it would not be a controlled experiment anymore it would be a manipulated Deseret experiment
Wiki User
∙ 10y ago
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What is the group that experiences no changes in the independent variable?
Controlled variables are things that must be controlled and kept the same during the experiments in order to prevent them from having an impact on results.
What are Confounding Variables?
In any experiment there are many kinds of variables that will effect the experiment. The independent variable is the manipulation for the experiment and the dependent variable is the measure you take from that experiment. Confounding variables are things in which have an effect on the dependent variable, but were taken into account in the experimental design. For example, you want to know if Drug X has an effect on causing sleep. The experimenter must take care to design the experiment so that he can be very sure that the subjects in the study fell asleep because of the influence of his Drug X, and that the sleepiness was not caused by other factors. Those other factors would be confounding variables.
During an experiment whivh factors must be controlled so that researchers can draw a logic conclusion?
figure it out yourself ,geez its not that hard.
What are the independent dependent and control variables?
The independent variable is the thing you are changing/varying. The dependent variable is the thing you are measuring. This variable should be affected by the independent variable. Control variables are anything that must be kept constant. If there are any other factors which affect the dependent variable, then these need to be controlled so that they do not have any significant effect (basically ensuring that you are actually measuring the effects of the independent variable).
What means the variable that must be kept constant?
What variables must be kept constant
How many controlled variables must a controlled experiment contain to be valid?
Every variable except for the one being tested should be controlled.
Why is it so important to control variables in an experiment?
You need to control variables in an experiment so as to make sure that only the variable you are testing and changing is the one affecting the results of your experiment. For example, in an experiment to find the effect of light intensity on the rate of photosynthesis of plant, you'll change light by putting a plant in sun and another in dark but you must not change carbon dioxide level for both plants so by that you have controlled other variables in the experiment(variables which must be the same always in the experiment).
Why must the parameters of a scientific experiment be controlled?
If the parameters are not controlled in a scientific experiment, then one cannot be sure what the variables are. Unless you conduct the experiment in a closed environment with only only one variable, one's results can be confusing and inconclusive.
List three things that you can control and or measure in this experiment in chemistry lab?
There are more than three possible controls for any experiment, as a control is just a variable that something is being tested against and compared to. Three would include temperature, color, or weight - all things that may be easily controlled among a group of test subjects.
What is the variable in an experiment?
The factor that can change in an experiment
How many variables do you need in a science experiment?
Ideally, an experiment should test only one variable (the independent variable) at a time. If you have two or more variables changing at the same time you have no way of knowing which variable is causing your results.
What must a proper experiment have in it?
indipendante variable, dependant variable, and a control group
How many variables should you have when you start an experiment?
An experiment involves three types of variable.The independent variable is the one you are investigating. It is the one which you deliberately vary in the experiment. You should only have one independent variable.The dependent variable is the variable which you measure to get your results. Often there is only a single dependent variable but there can be more.All other variables must be controlled ie kept constant so they do not change the result. There are usually many control variables in an experiment.
How many variables should a experiment have?
An experiment involves three types of variable.The independent variable is the one you are investigating. It is the one which you deliberately vary in the experiment. You should only have one independent variable.The dependent variable is the variable which you measure to get your results. Often there is only a single dependent variable but there can be more.All other variables must be controlled ie kept constant so they do not change the result. There are usually many control variables in an experiment.
In an experiment what are controlled variables?
Controlled variables are quantities that must remain constant.
Are all scientific experiments controlled?
hi my name is Chasity im a freashmen in high school. this is the answer: Control means a factor which remains the same and doesn't change while variable is the other thing which can vary according to situation. hope that helped.
What are the 3 scientific variables?
The Independent Variable : It is the ONE thing you plan to be different in the experiment. You decide on what is going to be different BEFORE doing the experiment. Dependent Variable or Outcome Variable : It is the result you compare of measure in the experiment. Controlled Variable : This is the part of the experiment that you DO NOT CHANGE. This is what STAYS THE SAME.
