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Performance in identification line-ups and unconscious transference in individuals with intellectual disabilities

Year: 2025
Type: article
Abstract: Introduction: Persons with Intellectual Disabilities (ID) have a great probability of crime victimization, mainly in crimes in the private sphere. Then, the evidence is commonly reduced to his/her testimony and the harm forensic evaluation. The validity of the testimony is critical for judicial decision-making. A mock crime paradigm was designed with the aim of estimating the validity of the identification made by ID persons in line-ups. Method: 57 adults with ID, 37 males, aged from 18 to 61 years (M = 27.05, SEM = 1.01), participated in the study, 29 completed an identification task in a line-up where the Target Stimulus was present, and 28 with the Target Stimulus absent. In both conditions a Distractor (a person present in the scene of the event, no Target Stimulus) was part of the line-up. Results: The results exhibited a significantly better performance in the condition of Target Stimulus present in the line-up (.690) than in the condition of Target Stimulus when it was absent (.393). However, the probability of error (i.e., false identifications) (.310) was also significant (> .05, constant). When the Target Stimulus was absent, the probability of correct (non-identification) and incorrect identification (identification of any member of the line-up) were equal. In both line-up conditions, the unconscious transference effect (identification of the distractor) was observed, being this identification significantly higher than the remaining non-Target Stimulus of the line-up. Conclusions: The implications of the findings for judicial and law enforcement practices are discussed.
DOI: 10.30827/publicaciones.v55i2.35406
Language: English
Field: Psychology
Open Access status: diamond
OpenAlex ID: W7135404658
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