Field experiment

• What is a strength of field experiments regarding ecological validity?

  Much greater ecological validity
• How do field experiments affect demand characteristics?

  They should be reduced or eliminated
• What is a limitation of field experiments related to extraneous variables?

  Less control of extraneous variables
• How do field experiments affect the likelihood of confounding results?

  Results more likely to be confounded
• How do field experiments compare to laboratory experiments in terms of time and cost?

  More time consuming and expensive than laboratory
• What are the strengths and limitations of field experiments?

  Strengths:

  • Much greater ecological validity
  • Demand characteristics should be reduced or eliminated

  
  

  Limitations:

  • Less control of extraneous variables
  • Results more likely to be confounded
  • More time consuming and expensive than laboratory