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Developing a Question Using Variables
Created by Marcie Griffith 2012
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Research questions are are framed around the possible relationship
between an independent and dependent variable.
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Independent Variable
• Variable I will manipulate (change) in the experiment
• Only 1 independent variable allowed
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Dependent Variable
• What I will measure
• Data I will record
• The result DEPENDS on my independent variable
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Posing Your QuestionWhat happens to ____________ when we (Dependent Variable)
change ____________________? (Independent Variable)
OR How does ___________________ affect (Independent Variable) _________________? (Dependent Variable)
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Let’s Practice!
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Observation- Handball CourtI noticed that students who won the most handball games, were those who could bounce the ball over their opponent’s head.
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Let’s apply the scientific method to help my answer my question
This made me wonder… How much does the ball have to do with the bounce height?
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Research questions are written in the form of a question about the possible relationship between an independent and dependent variable.
![Page 10: Developing a Question Using Variables](https://reader035.vdocuments.us/reader035/viewer/2022062520/568161ba550346895dd19068/html5/thumbnails/10.jpg)
Research questions are written in the form of a question about the possible relationship between an independent and dependent variable.
![Page 11: Developing a Question Using Variables](https://reader035.vdocuments.us/reader035/viewer/2022062520/568161ba550346895dd19068/html5/thumbnails/11.jpg)
Research questions are written in the form of a question about the possible relationship between an independent and dependent variable.
ONLY 1 Independent Variable Allowed!
![Page 12: Developing a Question Using Variables](https://reader035.vdocuments.us/reader035/viewer/2022062520/568161ba550346895dd19068/html5/thumbnails/12.jpg)
Research questions are written in the form of a question about the possible relationship between an independent and dependent variable.
![Page 13: Developing a Question Using Variables](https://reader035.vdocuments.us/reader035/viewer/2022062520/568161ba550346895dd19068/html5/thumbnails/13.jpg)
Research questions are written in the form of a question about the possible relationship between an independent and dependent variable.
![Page 14: Developing a Question Using Variables](https://reader035.vdocuments.us/reader035/viewer/2022062520/568161ba550346895dd19068/html5/thumbnails/14.jpg)
What happens to bounce height when we change the color of the ball?
OR
How does ball color affect bounce height?
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Head’s Together!
• What is the independent variable?
• What is the dependent variable?
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Controlled Variables
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Controlled Variables
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Controlled Variables
15 ftDrop
Height10 ftDrop
Height
What’s wrong here?
How might this impact our experiment?
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Controlled Variables
15 ftDrop
Height
What’s wrong here?
What variable might thisscenario test?
15 ftDrop
Height
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Controlled Variables
15 ftDrop
HeightWhat variable might thisScenario test?
15 ftDrop
Height
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Controlled Variables
15 ftDrop
Height
How many times should I repeat the measurement?
15 ftDrop
Height
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Continuing the Experiment • Conduct Experiment • Take Multiple Measurements• Represent Data• Interpret Data & Draw Conclusions • Future Research/Next Steps• Share Findings