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The Independent/Manipulative variable is the variable that you purposely change, and the Dependent/Responsive variable is the variable that changes as a rest of the Independent variable. You measure the dependent variable to see the effects of the Independent variable.

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13y ago
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14y ago

Let us say that you would like to investigate the question of the effect of copper as a trace element on the growth of plants. Copper is then the variable because you vary the amount that is present in the soil of your test plants, while keeping everything else, such as the amount of water, the amount of nitrogen fertilizer, the amount of sunlight, etc., exactly the same. If you had more than one quantity that varied, you would then be unable to determine what the results of your experiment mean. For example, you have low copper and low nitrogen, and the plant does badly; was it the copper or the nitrogen which made the difference, or both? You wouldn't know. That's why you vary only one parameter at a time.

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11y ago

the variable that is observed and measured is the dependent variable, the one that is intentionally altered is the independent variable. An easy way to remember this is that the dependent variable depends on the independent variable.

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14y ago

The Unknown variable.

You design an experiment so to account for all variables except for one. That one is the measure of the result of the experiment.

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11y ago

stays the same or does not stay the same

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13y ago

The 'objective variable'.

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13y ago

The dependent variable

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14y ago

CONSTANT

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Q: What are variables in an investigation?
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Related questions

What are the three variables that play an important role in a Practical Investigation?

Independent Variables, Dependent Variables and Extraneous Variables.


What are the manipulated and responding variables in this investigation?

dependent variable


What is a variable in relation to an investigation?

time or length could be two different variables depending in what the investigation was based on


How many independent variables are there in a simple controlled investigation?

two


What variable gets changed during an investigation?

Dependent variables


What is the relationship variables and the outcome of an investigation?

stop figure it out in your own retards


How many variables does a scientific investigation have?

As many as are necessary, as few as possible.


What are the variables in the scientific investigation?

They're the parameters that vary. Hence the name.


What is the constant variable in investigation of fungi growth mold?

The variables that you keep the same between the control and experimental groups are the constant variables.


What type of scientific investigation involves identifying and controlling variables?

laboratory experiment


The scientific investigation of the relationship between two or more variables describes which of these?

ReSearch


What dependent independent and control variables are in an investigation?

The answer depends on the nature of the investigation.The answer depends on the nature of the investigation.The answer depends on the nature of the investigation.The answer depends on the nature of the investigation.