Quantitative methodologies use statistics to analyze numerical data gathered by researchers to answer their research questions. Quantitative methods can be used to answer questions such as:
- What are the relationships between two or more variables?
- What factors are at play in an environment that might affect the behavior or development of the organisms in that environment?
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Independent and Dependent Variables
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In quantitative research, a variable is something (an intervention technique, a pharmaceutical, a temperature, etc.) that changes. There are two kinds of variables: independent variables and dependent variables. In the simplest terms, the independent variable is whatever the researchers are using to attempt to make a change in their dependent variable.
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Table listing independent and dependent variables. Independent Variable(s) Dependent Variable A new cancer-treating drug being tested in different dosage strengths The number of detectable cancer cells in a patient or cell sample Different genres of music* Plant growth within a specific time frame
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