Name

Per

Date

 

Independent and Dependent Variables

 

Independent Variable I.V. - the variable that we change before we run the experiment. "What do I change?"

 

Dependent Variable D.V. - the variable that we measure and observe. "What do I observe?"

 

(constants)    run the experiment

c1 + c2 + I.V.   à   D.V. + c1 + c2

                              (outcome)

 

1. control group = Group B 50 people and no juice

    independent variable = the juice

    dependent variable = amount of stapled papers.

 

2. control group = a shower wall with just green slime

    independent variable = coconut juice

    dependent variable = absence of slime (not seen in this case)

 

3. c.g. = mice that are not put in a microwave

    i.v. = microwave radiation

    d.v. = strength to push away the block of wood

 

4. c.g. = the original itching powder

    i.v. = the new experimental itching powder

    d.v. = the length of time for itching