IQ stability: the relation between child and young adult intelligence test scores in low-birthweight samples

The stability of IQ from childhood to adulthood in low-birthweight subjects was measured in two independent samples with follow-up intervals of approximately 14 and 9.5 years. In both samples, intelligence was assessed with the WISC at a mean age of 9.5. Twenty-six subjects were retested with the WAIS at a mean age of 23.5, and 78 subjects with the BPP (the Danish Military Draft Board Intelligence Test) at the age of 19.1. Both samples obtained childhood and adult test scores below the expected means. For the Wechsler Verbal, Performance and Full-Scale IQs, the stability quotients were 0.86, 0.86, and 0.89 in the WAIS sample, and the retest correlations for the three IQs with the BPP score were 0.66, 0.65, and 0.74. Thus, the majority of children showed stable patterns of intellectual development from middle childhood to young adulthood.     

An increase of intelligence in China 1986–2012

The Flynn effect has been widely researched in Western and European nations, while it has been comparatively understudied in Asian countries. This study examines possible Flynn effects in China from 1985 to 86 and to 2011–12. Results are reported for an IQ increase among 12 year olds on the Full Scale IQ WISC-R (Wechsler Intelligence Scale for Children-Revised) of 6.19 IQ points, a gain on the Performance IQ of 6.55 IQ points, and a gain on the Verbal IQ of 1.91 IQ points.     

L'identification des enfants à haut potentiel : Quelles perspectives pour l'approche psychométrique ?

The identification of gifted children is a paradoxical issue in the scientific literature. This topic is largely underrepresented, in spite of the complexity of the questions it raises. The concept of identification of giftedness is a multifaceted topic. From a theoretical point of view, the definitions of giftedness diverge. From a methodological point of view, the domains of measurement, the techniques of evaluation and the criteria used are also extremely variable. The limits of the “traditional” psychometric approach to giftedness are presented starting from the example of the WISC. Several questions are addressed: the value of the identification threshold, the relevance of available norms and psychometric qualities of this test. Finally, prospects offered by Item Response Models to renew the psychometric approach to the identification of giftedness are considered.     

WISC-III Cognitive Profiles in Children with ADHD: Specific Cognitive Impairments and Diagnostic Utility

This study aimed to investigate the presence of specific cognitive impairments and the diagnostic utility of the WISC-III in children with ADHD. Ninety-eight children with ADHD and 81 children without ADHD matched by age and gender (control group), between the ages of 6 and 12?years, participated in the study. Children with ADHD revealed the most pronounced deficits in the subtests tapping working memory and processing speed. Freedom from Distractibility was the cognitive profile most impaired and that showed the highest diagnostic accuracy to discriminate children with ADHD. The optimal cutoff scores of the most common WISC-III cognitive profiles revealed greater diagnostic accuracy than the traditional approach of full or partial profiles. Taken together, these results suggested that in the context of a comprehensive psychological assessment, the WISC may provide knowledge about the specific cognitive strengths and weaknesses that characterize this disorder and may be useful in the decision-making process relative to ADHD diagnosis.     

中国儿童认知能力的性别差异发展倾向：韦氏儿童智力量表结果分析

分析韦氏儿童智力量表的全国常模以探讨中国儿童认知能力的性别差异。研究中使用多元变量（ｍｕｌｔｉｖａｒｉａｔｅ）分析和单元变量（ｕｎｉｖａｒｉａｔｅ）分析两种手段。在多元交量分析中,首先使用线性结构关系（ＬＩＳＲＥＬ）多样本分析检验各年龄组中男女协方差矩阵、平均数向量和因子平均数的一致性;随后用区分分析确定造成差异的变项。与西方研究相比,中国儿童具有类似的性别差异类型与发展倾向,区别在于中国儿童的数学能力不存在明显的性别差异,这可能与中国的男女接受同等教育有关。