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Variables (Independent variable (Can take different values and can cause…
Variables
Independent variable
Can take different values and can cause corresponding changes in other variables,
Example: The independent variable is the amount of vitamin that is given to the subjects within the experiment. This is controlled by the experimenting scientist.
Experiment
Scientific experiments tests the relationship of an IV –that element which is manipulated by the experimenter– to the DV –that element affected by the manipulation of the IV. Any additional independent variable
Controlled experiment
In any system existing in a natural state, many variables may be interdependent, with each affecting the other.
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Discrete variable
A type of variable, also called a categorical or nominal variable, which has a finite number of possible values that do not have an inherent order.
Example: Number of quarters in a purse, jar, or bank. Discrete because there can only be a certain number of coins (1,2,3,4,5…).
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Phenomenon
A fact, occurrence, or circumstance observed or observable through variables
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Conclusions
In sciences variables are an essential part. They are the solutions to the problem we encounter everyday. How? They give values to what we are seeking to solve. They are not characteristics because they can change and this is what makes them interesting. They can be or not affected by other events, they can be about numbers or about features. They give meaning to something that most be solved, and they allow us to go further in research and experimentation. Variables are a part that should be well used and learned in every way possible to understand more the things that surround us.
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DEFINITION: A characteristic, number, or quantity that increases or decreases over time, or takes different values in different situations.
