methods: field experiments

Question 1

what is a field experiment?

Answer 1

• conducted in a natural environment
• independent variable is manipulated
• dependent variable is measured
• ppts are tested in their usual setting
• ppts may not know they’re part of an experiment until it’s over

Question 2

what are the advantages of field experiments?

Answer 2

• greater ecological validity
• more natural ppt behaviour
• realistic testing environment
• no demand characteristics if ppts are unaware

Question 3

what are the limitations of field experiments?

Answer 3

• greater chance of extraneous variables affecting results
• ethical issues if ppts are unaware
• no prior consent or right to withdraw
• debriefing and withdrawal of data may be necessary