Experiments

• What are the 4 types of experiments?


  • Laboratory experiments
  • Field experiments
  • Natural experiments
  • Quasi experiements
• What does the Laboratory experiment means?

  Takes place in a controlled environment within which the researcher manipulates the IV and record the effect on the DV, whilst controlling the EVs.
• What does Laboratory experiment mean?

  Takes place in a controlled environment within which the researcher manipulates the IV & records the effect on the DV, whilst controlling EVs.
• What does Field experiment mean?

  Takes place in a natural setting within which the researcher manipulates the IV & records the effect on the DV.
• What does Natural experiment mean?

  Naturally occurring variables which are external.
• What does Quasi experiment mean?

  Naturally occurring variables which are internal.
• 4 types of experiments

  
• What does Experimental designs mean?

  The way you organise your participants between the conditions of the IV.
• What are the 3 experimental designs and what do they mean?

  • Repeated measures: Only one group of participants, which takes place in both conditions.
  • Independent groups: Separate groups of different participants, one uses condition A and the other uses condition B.
  • Matched pairs: 2 separate groups are matched into pairs for certain qualities. One of each pair takes part in condition A, and the other in condition B.
• Positive and negatives about Repeated measures, Independent groups and Matched pairs.

  
• What does Random allocation mean?

  When you randomly choose which participant goes in which condition.
• What does Order effects mean?

  Where participants must repeat conditions, which may result in a change in personality (fatigue, boredom, or they figure out the condition).
• What does Counterbalancing mean?

  Change the order in which participants do the conditions to help reduce order effects.