Eyewitness testimony: anxiety evaluation

Weakness: there are ethical issues with studies into anxiety
The experiments into anxiety as a factor affecting eyewitness testimony have caused the participants to experience anxiety, potentially risking psychological harm. When the participants saw the man holding the knife in Johnson and Scott's study, for example, they may have felt distress. There are ethical issues with the study because participants have the right to protection from harm and distress, therefore, there is no informed consent

Weakness: other variables may have affected the results of…