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HomeHomework HelpscienceIndependent Variable

Independent Variable

An independent variable is a factor or condition in an experiment that is deliberately manipulated or altered by the researcher to observe its effect on a dependent variable. It is considered the input or cause in a cause-and-effect relationship.

beginner
1 hour
Science
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Overview

The independent variable is a fundamental concept in scientific experiments, representing the factor that researchers manipulate to observe its effects on other variables. Understanding this concept is crucial for designing effective experiments and interpreting results accurately. By controlling ot...

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Key Terms

Dependent Variable
The variable that is measured in an experiment.

Example: In a study on plant growth, the height of the plants is the dependent variable.

Control Variable
Variables that are kept constant to ensure a fair test.

Example: In a plant growth experiment, the amount of water given should be the same for all plants.

Hypothesis
A proposed explanation for a phenomenon, which can be tested.

Example: If I increase sunlight, then the plants will grow taller.

Experiment
A scientific procedure to test a hypothesis.

Example: An experiment to see how different fertilizers affect plant growth.

Data Analysis
The process of inspecting and interpreting data to draw conclusions.

Example: Analyzing the growth rates of plants under different light conditions.

Variable
Any factor that can change in an experiment.

Example: Temperature, light, and soil type are all variables in plant growth studies.

Related Topics

Dependent Variable
The variable that is measured in response to changes in the independent variable.
beginner
Experimental Design
The process of planning an experiment to ensure valid and reliable results.
intermediate
Control Variables
Understanding how to manage variables that could affect the outcome of an experiment.
intermediate
Data Collection Methods
Techniques used to gather data during experiments, crucial for analysis.
intermediate

Key Concepts

experimentdependent variablecontroldata analysis