Experimental Design Review

Experimental Design Review

Multiple Choice

What would the independent variable be in this experiment, and where would it go in the hypothesis?

• the volume of the music

  after the then

• the volume of the music

  after the if

• how fast the students run

  after the if

• how fast the students run

  after the then

Multiple Choice

What would the dependent variable be in this experiment, and where would it go in the hypothesis?

• the volume of the music

  after the then

• the volume of the music

  after the if

• how fast the students run

  after the if

• how fast the students run

  after the then

Multiple Choice

Using the picture, identify the control group.

• Trial 1

• Trial 2

• Trial 3

Multiple Choice

What is the purpose of a control group?

• There isn't a purpose - you don't have to have one.

• To determine what if any influence the independent variable has.

• To have a standard to compare to - "normal" conditions, without the independent variable.

Multiple Choice

What is the purpose of an experimental group?

• There isn't a purpose - you don't have to have one.

• To determine what if any influence the independent variable has.

• To have a standard to compare to - "normal" conditions, without the independent variable.

Multiple Choice

Which group(s) get the independent variable?

• control group only

• experimental group only

• both the control group and the experimental group

Multiple Choice

What is the independent variable in Experiment #2?

• the size of the tomatoes

• how tall the tomato plants get

• the amount of Miracle Grow the plants get

• the extra nutrients in the Miracle Grow

Multiple Choice

What was the purpose of Garden A?

• To have plants that did not get Miracle Grow to compare to - then you can see if the Miracle Grow made a difference or not.

• To collect more data on the effects of Miracle Grow.

• It didn't really have one - it was just the original garden.