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MG21 Virtual Library

Experimental Design: Doing science...

Doing Science

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Designing Your Experiment

 focus your question

 define your variables 

  • single independent variable (controlled or manipulated during experiment)
  • dependent variables (variable affected/responded to manipulation of the independent variable)
  • control group (no manipulation, to be used for comparison during experimentation)

 define your factors

 identify your controls

 planning for replication

 

Well-defined, testable questions

Well-Defined, Testable Questions (Video)

Testable Question = everyday questions, refined with

  • well-defined
  • measurable
  • changing (for experimentation)

Testable Question Frames:  

  • Does changing (the independent variable) affect (dependent variable)?
  • How does changing (the independent variable) affect (dependent variable)?

Videos

 

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