Question

5. Read the scenarios below. For each of the scenarios, identify the following (you should identify the 3 for EACH of the scenarios):

Control Group Independent Variable Dependent Variable

A. John thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, John counts how many stacks of papers each group has made. Group A made 1,587 stacks, Group B made 2,113 stacks.

B. Candy notices that her shower is covered in a strange green slime. Her friend Belinda tells her that coconut juice will get rid of the green slime. Candy decides to check this out by spraying half of the shower with coconut juice. She sprays the other half of the shower with water. After 3 days of "treatment" there is no change in the appearance of the green slime on either side of the shower.

C. Elisa is working on a science project. Her task is to answer the question: "Does Grow Long (which is a commercial hair product) affect the speed of hair growth?" Her family is willing to volunteer for the experiment.

Answer 1

A. Control Group: Group B
Independent Variable: Special juice
Dependent Variable: Number of stacks of papers made

B. Control Group: None (both sides of the shower are treated differently)
Independent Variable: Coconut juice and water
Dependent Variable: Appearance of the green slime

C. Control Group: Not mentioned
Independent Variable: Grow Long (commercial hair product)
Dependent Variable: Speed of hair growth

Answer 2

A.

1) Control Group: Group B (not given the special juice)

2) Independent Variable: Special juice given to Group A

3) Dependent Variable: Number of stacks of papers each group made

B.

1) Control Group: The side of the shower sprayed with water

2) Independent Variable: Coconut juice sprayed on one side of the shower

3) Dependent Variable: Appearance of green slime on both sides of the shower

C.

1) Control Group: No treatment

2) Independent Variable: Grow Long (commercial hair product)

3) Dependent Variable: Speed of hair growth

Step-by-step explanation: