research methods

research methods

1. variables

   • independent variables
     • dependent variables
       • the thing we measure in an experiment
     • the thing we change in an experiment

2. hypothesis

   • alternate hypothesis
     • predicts the iv will affect the dv
   • null hypothesis
     • predicts the dv is NOT effected by the iv

3. extraneous variables

   • time of the day AM PM
   • noise
   • caffeine mo caffeine