Misinformation Effect, explained.
The misinformation effect concerns changes in reported memory after exposure to misleading post-event information.
Why it happens
A visible scene contains three blue vans and two green crates. A later question mentions red vans before the reader recalls colour and count. The activity records actual responses and reveals the original.
The misinformation effect concerns changes in reported memory after exposure to misleading post-event information.
Read the result
Only the recalled colour and count are scored against the original scene; the later question is a suggestion, not an observation.
A worked example
Keep the scene separate from the retelling
Study the three blue vans and two green crates before hiding the original scene.
Read the later question and answer the colour and count questions from your own recall.
Reveal the original and distinguish any recall mismatch from proof of a particular memory mechanism.
OPTIONAL DEEPER DETAILGo deeper: inside the model
Inside this model
A visible scene contains three blue vans and two green crates. A later question mentions red vans before the reader recalls colour and count. The activity records actual responses and reveals the original.
Where this idea is useful
A practical use
Record an observation before discussing it with others, and distinguish original evidence from later descriptions.
A common misconception
“Confident recall guarantees an unchanged memory.”
Confidence and accuracy are different. A later description can become part of what someone reports, but this small activity cannot isolate that cause.
What this explanation leaves out
- A disclosed suggestion and a tiny visible scene do not reproduce controlled eyewitness-memory research.
What if the warning helps me resist the suggestion?
That is a legitimate outcome. The disclosed teaching activity prioritises understanding over reproducing the conditions of a blinded memory study.
Which detail came from the event and which from a later account?
Associated thinkers
Associations marked provisional are awaiting source review.
Further reading
Explore the original research or the teaching reference behind this experiment.