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### Developing a Question Using Variables

Research questions are written in the form of a question about the possible relationship between an independent and dependent variable.

Research questions are written in the form of a question about the possible relationship between an independent and dependent variable.

Created by Marcie Griffith 2012

Research questions are are framed around the possible relationship between an independent and dependent variable.

Independent Variable

- Variable I will manipulate (change) in the experiment
- Only 1 independent variable allowed

Dependent Variable

- What I will measure
- Data I will record
- The result DEPENDS on my independent variable

Posing Your Question

What happens to ____________ when we

(Dependent Variable)

change ____________________?

(Independent Variable)

OR

How does ___________________ affect

(Independent Variable)_________________?

(Dependent Variable)

Observation- Handball Court

I noticed that students who won the most handball games, were those who could bounce the ball over their opponent’s head.

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?

Research questions are written in the form of a question about the possible relationship between an independent and dependent variable.

Research questions are written in the form of a question about the possible relationship between an independent and dependent variable.

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!

What happens to bounce heightwhen we change the color of the ball?

OR

How does ball coloraffect bounce height?

Head’s Together!

- What is the independent variable?
- What is the dependent variable?

Controlled Variables

What’s wrong here?

15 ft

Drop Height

10 ft

Drop Height

How might this impact our experiment?

Controlled Variables

What’s wrong here?

15 ft

Drop Height

15 ft

Drop Height

What variable might this

scenario test?

Controlled Variables

How many times should I repeat the measurement?

15 ft

Drop Height

15 ft

Drop Height

Continuing the Experiment

- Conduct Experiment
- Take Multiple Measurements
- Represent Data
- Interpret Data & Draw Conclusions
- Future Research/Next Steps
- Share Findings

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