Experimental Method

• What are aims in an investigation?

  General statements describing the investigation's purpose
• How are aims developed in research?

  Aims are developed from theories
• What is a hypothesis?

  A statement describing the relationship between variables
• What are the three types of hypotheses?

  Directional, Non-Directional, Null
• What does a directional hypothesis specify?

  It specifies the direction of the relationship
• What does a non-directional hypothesis state?

  It states there is a difference without direction
• What does a null hypothesis state?

  It states there is no relationship between variables
• What is the independent variable?

  What is changed in the study
• What is the dependent variable?

  What is measured in the study
• What is operationalisation in research?

  Clearly defining variables for measurement
• Should all variables be operationalised?

  Yes, all variables should be operationalised
• What is the template for a directional hypothesis?

  • Participants in (Independent Variable Condition1) will have increased/decreased (Dependent Variable) compared to participants in (Independent Variable Condition2)
• What is the template for a non-directional hypothesis?

  • There will be a difference in (Dependent Variable) between participants in (Independent Variable Condition1) and participants in (Independent Variable Condition2)
• What is the template for a null hypothesis?

  • There will be no difference in (Dependent Variable) between participants in (Independent Variable Condition1) and participants in (Independent Variable Condition2)