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Personality Trait Profiles in People With Mild Intellectual Disability: A Comparative Study
Renate A van der Heijden1,2, Paul T van der Heijden2,3, Hubert P L M Korzilius4
1Centre for Psychiatry and Mild Intellectual Disability, GGZ Oost Brabant, Boekel, The Netherlands.
People with mild intellectual disability (MID) show similar maladaptive personality traits as those with borderline intellectual functioning and average educational levels. Clinicians should assess beyond intellectual disability for mental health needs in MID populations.
Area of Science:
- Psychiatry
- Psychology
- Intellectual Disability Research
Background:
- Assessing personality in individuals with mild intellectual disability (MID) is challenging due to communication barriers and limited validated instruments.
- Maladaptive personality traits in MID may be misattributed to the disability itself, leading to a knowledge gap.
- This study aimed to investigate maladaptive personality traits in individuals with MID.
Purpose of the Study:
- To explore and characterize maladaptive personality traits in individuals with mild intellectual disability (MID).
- To compare the maladaptive personality profiles of individuals with MID to those with borderline intellectual functioning (BIF) and average educational levels (AVE).
Main Methods:
- Utilized the Dimensional Assessment of Personality Pathology-Short Form (DAPP-SF) for trait assessment.
- Compared maladaptive personality traits in individuals with MID (n=75) from specialized mental health care.
- Included comparison groups of individuals with borderline intellectual functioning (BIF, n=69) and average educational levels (AVE, n=73) from general mental health care.
Main Results:
- Individuals with MID exhibited higher scores in Affective Lability, Anxiousness, Identity Problems, Insecure Attachment, and Suspiciousness compared to the AVE group.
- Individuals with MID scored lower on Narcissism and Social Avoidance than the AVE group.
- No significant differences in personality traits were observed between MID and BIF groups, except for lower Social Avoidance in MID.
Conclusions:
- Maladaptive personality traits in individuals with MID and comorbid psychopathology are comparable in severity to those with BIF or average educational levels within mental health care settings.
- Highlights the importance for clinicians to look beyond intellectual and adaptive functioning when assessing mental health issues in individuals with MID.
- Emphasizes the need for tailored treatment approaches to address the mental health needs of individuals with MID.
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