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. 2022 Aug 25;12(9):304.
doi: 10.3390/bs12090304.

Developmental and Intelligence Quotient in Autism: A Brief Report on the Possible Long-Term Relation

Assia Riccioni  1   2 , Martina Siracusano  2   3 , Lucrezia Arturi  1   2 , Claudia Marcovecchio  1   2 , Valentina Postorino  4 , Leonardo Emberti Gialloreti  3 , Luigi Mazzone  1   2
Affiliations

Developmental and Intelligence Quotient in Autism: A Brief Report on the Possible Long-Term Relation

Assia Riccioni et al. Behav Sci (Basel). .

Abstract

Developmental level and cognitive skills assessment represents a crucial aspect in the delineation of the clinical phenotype and long-term outcomes of individuals with autism spectrum disorder (ASD). Nevertheless, the evaluation of cognitive development trajectory across a lifespan ranging from birth to school age appears challenging for clinicians and researchers, because of the lack of measures that coherently cover this timeframe. Thus, the main goal of this community-based study was to investigate within a sample of ASD children if the developmental quotient (DQ), evaluated through the Griffiths Mental Development Scales Extended Revised (GMDS-ER) scale, predicts the non-verbal brief intelligence quotient (IQ), measured through the Leiter-R at follow-up. The main observation of our study was a positive correlation between the level of DQ and nonverbal IQ at follow-up evaluations, highlighting that ASD children characterized by a greater developmental profile will later present higher non-verbal IQ.

Keywords: assessment; autism spectrum disorder; cognitive; development; evaluation; intelligence.

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Conflict of interest statement

The authors declare no conflict of interest.

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