Of the 30 participants who were told they had committed a crime as a teenager, 21 (71%) were classified as having developed a false memory of the crime; of the 20 who were told about an assault of some kind (with or without a weapon), 11 reported elaborate false memory details of their exact dealings with the police.
A similar proportion of students (76.67%) formed false memories of the emotional event they were told about.
Intriguingly, the criminal false events seemed to be just as believable as the emotional ones. Students tended to provide the same number of details, and reported similar levels of confidence, vividness, and sensory detail for the two types of event.
Shaw and Porter speculate that incorporating true details, such as the name of an actual friend, into an account that was supposedly corroborated by the student’s caregiver likely endowed the false event with just enough familiarity that it came to seem plausible.