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.