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What is the term for a group of subjects that receives all variables except for the independent variable in an experiment?
Wiki User
∙ 15y ago
control group
Wiki User
∙ 15y ago
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What is an Independent Variable and a dependant variable?
temperature, pressure , volume, are independent density, viscosity, etc are dependent Properties of mater are always dependent of independents. as (dependent) density , viscosity , mass density , phase conduction , etc always vary when we change independents .(temperature, pressure , volume) so you can understand dependent & in dependent
Two types of variable in science?
The two broad types of variables in scientific experimentation are dependent and independent variables. Independent variables are variables (ideally only one or very few) that the experimenter manipulates in the experiment. For example, if you were testing the effect of temperature on plant growth rates, you would likely have similar plants in similar conditions but in areas with different temperatures. The experimenter is changing the temperature between the groups of plants, so the temperature would be the independent variable. The dependent variables are the effects the independent variable has on the experimental subjects. They are changes not being directly controlled or manipulated by the experimenter. In the above temperature vs. plant growth example, the rate of plant growth would be the dependent variable; it depends on the temperature.
What is the benefit of using placebos in an experiment?
all subjects receive treatment's
In an experiment the subjects or items being investigated are divided into the experimental group and?
the control group
What is the purpose for the proper handling of experimental subjects?
to help scientists plan an experiment in which no animals or humans are harmed
What is the term for a group of subjects that receives all variables except for the independent variables in an experiment?
control group
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.
What are the two types of variables and how do they differ?
The two types of variables are: independent variables and dependent variables.Independent variables are variables (ideally only one or very few per experiment) that the experimenter manipulates in the experiment. For example, if you were testing the effect of temperature on plant growth rates, you would likely have similar plants in similar conditions but in areas with different temperatures. The experimenter is changing the temperature between the groups of plants, so the temperature would be the independent variable.The dependent variables are the effects the independent variable has on the experimental subjects. They are changes not being directly controlled or manipulated by the experimenter. In the above temperature vs. plant growth example, the rate of plant growth would be the dependent variable; it depends on the temperature.
What is an Independent Variable and a dependant variable?
temperature, pressure , volume, are independent density, viscosity, etc are dependent Properties of mater are always dependent of independents. as (dependent) density , viscosity , mass density , phase conduction , etc always vary when we change independents .(temperature, pressure , volume) so you can understand dependent & in dependent
Two types of variable in science?
The two broad types of variables in scientific experimentation are dependent and independent variables. Independent variables are variables (ideally only one or very few) that the experimenter manipulates in the experiment. For example, if you were testing the effect of temperature on plant growth rates, you would likely have similar plants in similar conditions but in areas with different temperatures. The experimenter is changing the temperature between the groups of plants, so the temperature would be the independent variable. The dependent variables are the effects the independent variable has on the experimental subjects. They are changes not being directly controlled or manipulated by the experimenter. In the above temperature vs. plant growth example, the rate of plant growth would be the dependent variable; it depends on the temperature.
What is designed experiment in statistics?
They are experiments which are designed in such a way as to provided maximum information about the effects on the dependent variable of explanatory (independent) variables, separately as well as their interactions, with the smallest number of experimental subjects. Latin squares and Graeco-Latin squares are some of the better known examples.
Is there one dependent variable in an experiment?
No, there can be several outputs that are dependent variables. For example, you will have a number of grades in different subjects when you finish school. So the experiment (your schooling) will result in a number of dependent variables. Similarly, the school's outcome for its "experiment" of teaching a number of pupils will be several sets exam grades: a different dependent variable for each subject.
In an experiment to determine the usefulness of virtual reality therapy in curing phobic disorders subjects are assigned to a VR or non VR group this is the study?
independent variable.
In an experiment to determine the usefulness of virtual reality therapy in curing phobic disorders subjects are assigned to a VR or non-VR group This is the study's?
independent variable.
How many blocks will there be in her experiment?
A researcher wishes to design a fully blocked experiment with groups of subjects representing every possible combination of 1 explanatory variable (control vs. treatment) and 3 other variables (male vs. female, old vs. young, healthy vs. ill) for a total of 4 variables. 16
What is true about a controlled experiment?
Scientists perform controlled experiments in order to reduce as many third variables as possible. This means they are trying to prevent variables not directly related to the study from influencing the results.
What is the definition of idependent variable?
An independent variable is a part of an experiment that might change due to the outcome not being a desired result. The person conducting an experiment about how a medicine might affect a person, might change the number of people tested to gain more insight into the results. The independent variable in that situation would be the number of test subjects.
