Experimental Methods

• experimental method


  a method which involves manipulating an IV to measure the effect on the DV
• aim


  describes the purpose of a study
• hypothesis


  clear, precise, testable statement that states the relationship between two variables
• directional hypothesis


  states the expected direction of the relationship between two variables
• non-directional hypothesis


  doesn't state the expected direction of the relationship between two variables
• operationalise a variable


  clearly defining variables to make them specific and clearly measurable