Variables

Variables

1. Independent Variable

   • The variable that is directly manipulated by the investigator to observe the effects is has on the dependent variable.

2. Dependent Variable

   • The variable that is measired by the researcher.

3. Extraneous Variables

   • MAY affect the dependent variable.
   • Unwanted variables
   • Their effect on the dependent variable is the same in all conditions.
   • Extra to the independent variable.

4. Confounding Variables

   • DO affect the dependent variable.
   • Unwanted variables
     • Their effect on the dependent variable is caused by the conditions the participants are in.

5. Operationalisation

   • This is when you define the varibale so it can be measured therefore you make it clear how the variable will be tested.