What is the misinformation effect and how does it challenge eyewitness testimony?

What is the misinformation effect and how does it challenge eyewitness testimony?

• A. It's about memory being enhanced by confusion.
• B. Misleading information after an event can alter memory; eyewitness testimony challenged.
• C. Misinformation effect claims memory is perfect after an event.
• D. It has no relation to memory.

Answer: (B)

The misinformation effect happens when information encountered after an event—especially misleading or conflicting details—gets woven into a person’s memory of what happened, changing or contaminating what they later recall. Memory isn’t a perfect replay; it’s constructive. When witnesses are exposed to new details through questions, media reports, or others’ accounts, those details can be stored alongside or instead of the original memory, producing false details or altered perceptions of the event. This is why eyewitness testimony can be unreliable: a witness’s later report may reflect the influence of information encountered after the event rather than what they actually observed. Classic demonstrations show that even subtle changes in how a question is framed or what information is presented after the event can shift people’s memories about what happened, including estimates of speed or details seen. The key takeaway is that post-event information can shape memory, so careful, non-suggestive interviewing is essential to protect the integrity of eyewitness reports.

The misinformation effect happens when information encountered after an event—especially misleading or conflicting details—gets woven into a person’s memory of what happened, changing or contaminating what they later recall. Memory isn’t a perfect replay; it’s constructive. When witnesses are exposed to new details through questions, media reports, or others’ accounts, those details can be stored alongside or instead of the original memory, producing false details or altered perceptions of the event. This is why eyewitness testimony can be unreliable: a witness’s later report may reflect the influence of information encountered after the event rather than what they actually observed. Classic demonstrations show that even subtle changes in how a question is framed or what information is presented after the event can shift people’s memories about what happened, including estimates of speed or details seen. The key takeaway is that post-event information can shape memory, so careful, non-suggestive interviewing is essential to protect the integrity of eyewitness reports.