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Articles related to variables

Everything You Need to Know About Variables - Ruby - About.com
In more dynamic languages like Perl (with strict enabled), variables may be declared anywhere but must be declared before used. In Ruby, things are a bit ...
http://ruby.about.com/od/variables/a/Everything-You-Need-To-Know-About-Variables.htm
Variables - Ruby - About.com
What are Variables and how to use Variables in Ruby.
http://ruby.about.com/od/beginningruby/a/variable.htm
Instance Variables in Ruby - About.com
They differ from local variables in that they don't exist within any particular scope. Instead, a similar variable table is stored for each instance of a class. Instance ...
http://ruby.about.com/od/variables/a/Instance-Variables.htm
What Is a Variable in Science? (And Types of Variables) - Chemistry
Basically, a variable is any factor that can be controlled, changed, or measured in an experiment. Scientific experiments have several types of variables.
http://chemistry.about.com/od/sciencefairprojects/a/What-Is-A-Variable-In-Science.htm
What Is a Variable? - Psychology - About.com
A variable is something that can be changed, such as a characteristic or value. Variables are generally used in psychology experiments to determine if changes  ...
http://psychology.about.com/od/researchmethods/f/variable.htm
What Is the Difference Between Independent and Dependent ...
The difference between independent and dependent variables in a scientific experiment is which variable is being measured. Here's an explanation of how to  ...
http://chemistry.about.com/od/chemistryterminology/a/What-Is-The-Difference-Between-Independent-And-Dependent-Variables.htm
What Is an Independent Variable? - Chemistry - About.com
An independent variable in a scientific experiment is the variable that is changed to test the effect on a dependent variable.
http://chemistry.about.com/od/chemistryterminology/a/What-Is-An-Independent-Variable.htm
Dependent Variable - Definition of Scientific Terms - Chemistry
A dependent variable is the variable being tested in a scientific experiment.
http://chemistry.about.com/od/chemistryterminology/a/What-Is-A-Dependent-Variable.htm
What Is a Dependent Variable? (Definition & Examples) - Psychology
In a psychology experiment, researchers are looking at how changes in the independent variable cause changes in the dependent variable.
http://psychology.about.com/od/dindex/g/dependvar.htm
What Is the Independent Variable? - Psychology - About.com
The independent variable is the characteristic of a psychology experiment that is manipulated or changed. For example, in an experiment looking at the effects of ...
http://psychology.about.com/od/iindex/g/independent-variable.htm
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