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The distribution of IQ index scores in the psychometric profile of children with High Intellectual Potential (HIP): Is the heterogeneity specific to HIP?

Published online by Cambridge University Press:  19 July 2023

S. Hamdioui  and
L. Vaivre-Douret
S. Hamdioui*
Affiliation:
Department of Psychology, Faculty of Society and Humanity, University of Paris Cité, Paris INSERM Unit 1018-CESP, Faculty of Medicine, University of Paris-Saclay, UVSQ, Villejuif
L. Vaivre-Douret
Affiliation:
INSERM Unit 1018-CESP, Faculty of Medicine, University of Paris-Saclay, UVSQ, Villejuif Faculty of Health, Department of Medicine Paris Descartes, University of Paris Cité Chair in Clinical Neurodeveloppmental Phenotyping, Institut Universitaire de France (IUF) Department of Endocrinology, IMAGINE Institute of Necker-Enfants Malades hospital Department of Child Psychiatry, Necker-Enfants Malades Hospital, AP-HP.Centre, Paris, France
*
*Corresponding author.

Abstract

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Introduction

The majority of studies on the HIP IQ attest a heterogeneity of the IQ profile as specific to HIP. However, the samples are recruited in clinical consultations. Thus, it is important to investigate new samples from schools.

Objectives

We aimed to analyze the index scores of the IQ profile of children without disorders or specific school assistance.

Methods

The WISC-V was conducted and analyzed in 80 healthy children (50 HIP vs. 30 non-HIP), aged 7-to-13 years-old (mean 10y; SD 1.8). All children were recruited in private and public schools in Paris.

Results

All IQ index scores were significantly higher in the HIP vs. non-HIP. In both groups, the Verbal Comprehension Index was the highest index while the Processing Speed Index was the lowest. There are significantly (p=0.02) more heterogeneous IQ profiles in HIP (64%) vs. non-HIP (47%), with a significantly larger gap between the highest and lowest index (respectively: median = 29.5 vs. 21.5). There was a significant-positive correlation between IQ level in general and the heterogeneity of the profile (r = 0.42; p<0.001).

Conclusions

The HIP children show better verbal, visual-spatial, fluid reasoning, working memory, and processing speed index scores. However, the distribution of IQ index scores was similar in both groups. Thus, the heterogeneity of the IQ profile is not specific to HIP children, but rather related to IQ score level. This highlights the importance of considering the IQ as a continuum rather than as a categorical distribution. Moreover, it points to the interest to better understand the IQ profile by completing it with multidimensional assessments.

Disclosure of Interest

None Declared

Type
Abstract
Information
European Psychiatry , Volume 66 , Special Issue S1: Abstracts of the 31st European Congress of Psychiatry , March 2023 , pp. S746
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of the European Psychiatric Association
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