Designing an Experiment

"Thomas wants to design an experiment to see if wearing Nikes makes you run faster than other shoes in a 5K race." What is the independent variable in this experiment?

• race time
• shoe brand
• Thomas
• race distance

"Thomas wants to design an experiment to see if wearing Nikes makes you run faster than other shoes in a 5K race." What is the dependent variable in this experiment?

• race time
• shoe brand
• race distance
• Thomas

"Thomas wants to design an experiment to see if wearing Nikes makes you run faster than other shoes in a 5K race." Which of these are constants in this experiment?

• Thomas
• shoe brand
• race distance
• race time