Experimental method

• What is the theory regarding energy drinks and talkativeness?

  Energy drinks increase alertness, making people talkative
• What substances in energy drinks are believed to affect talkativeness?

  Sugar and caffeine
• What is the aim of the investigation regarding SpeedUpp?

  To investigate if energy drinks increase talkativeness
• What is a hypothesis in psychological research?

  A statement describing the relationship between variables
• What is a directional hypothesis?

  A hypothesis that specifies the expected difference
• What is a non-directional hypothesis?

  A hypothesis that states a difference exists without specifics
• What method is being used to test the energy drink theory?

  The experimental method
• What will participants in the experimental group receive?

  A can of SpeedUpp
• What will participants in the control group receive?

  A glass of water
• What will be recorded after participants drink their beverage?

  The number of words spoken in five minutes
• Why is it important to have a control condition in the experiment?

  To compare the effects of SpeedUpp
• What is the independent variable (IV) in this study?

  The type of drink consumed
• What is the dependent variable (DV) in this study?

  The talkativeness of participants
• What are the two levels of the independent variable (IV)?

  No SpeedUpp and drinking SpeedUpp
• What is operationalization of variables?

  Defining variables to make them measurable
• Why is operationalization important in psychological research?

  To ensure variables are clear and measurable
• What is the purpose of an aim in psychological research?

  To describe the purpose of an investigation
• How do researchers decide between directional and non-directional hypotheses?

  Based on previous research and theories