Here is an example of a question you might be asked on this topic - for AO3.
AO3: You need to analyse and evaluate key concepts, ideas, theories and research.
Question: Evaluate the use of field experiments in psychological research. [5]
Model answer:
- A strength of using field experiments is that they are conducted in natural settings and usually use realistic tasks which means that participants behave as they normally would i.e. the findings have higher ecological validity than lab experiments
- Another strength of field experiments is that participants are often unaware that they are taking part in an experiment which means that they do not show demand characteristics i.e. they behave as they normally would.
- A weakness of field experiments is that they can raise ethical issues as participants may not be aware that they are taking part in an experiment which means they may not have given consent and are unaware that they have a right to withdraw.
- Another weakness of field experiments is that the researcher has lower control over variables compared to a laboratory setting which means that extraneous variables may affect how participants behave.
- A lack of control means that it is difficult for the researcher to establish how the independent variable affects the dependent variable plus less control could mean that it can be difficult to standardise procedures/replicate field experiments which lowers their reliability.