One strength is its real-life applications. For example, Loftus argues that leading questions have such a distorting effect on memory that police officers need to be more careful about their phrasing during interviews.
However, a limitation is the presence of demand characteristics. For example, in EWT studies, they may see film clips of car accidents, robberies or weapons and then be asked to perform a recall task. PS want to appear helpful and attentive hence they deliberately behave to fulfil those expectations or to undermine them.
Another limitation is the use of artificial tasks. For instance, in Loftus and Palmer’s study, they showed PS film clips of car accidents.
Furthermore, it ignores individual differences. For example, Anastasi and Rhodes found that people in age groups 18-25 and 35-45 were more accurate when identifying people of their own age group - own age bias.