Mungkhetklang Chantanee, Crewther Sheila G, Bavin Edith L, Goharpey Nahal, Parsons Carl
Department of Psychology and Counselling, La Trobe University Melbourne, VIC, Australia.
Port Phillip Specialist School Port Melbourne, VIC, Australia.
Front Psychol. 2016 May 17;7:683. doi: 10.3389/fpsyg.2016.00683. eCollection 2016.
Finding the most appropriate intelligence test for adolescents with Intellectual Disability (ID) is challenging given their limited language, attention, perceptual, and motor skills and ability to stay on task. The study compared performance of 23 adolescents with ID on the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV), one of the most widely used intelligence tests, and three non-verbal IQ tests, the Raven's Colored Progressive Matrices (RCPM), the Test of Non-verbal Intelligence-Fourth Edition and the Wechsler Non-verbal test of Ability. Results showed that the WISC-IV Full Scale IQ raw and scaled scores were highly correlated with total scores from the three non-verbal tests, although the correlations were higher for raw scores, suggesting they may lead to better understanding of within group differences and what individuals with ID can do at the time of assessment. All participants attempted more questions on the non-verbal tests than the verbal. A preliminary analysis showed that adolescents with ID without ASD (n = 15) achieved higher scores overall than those presenting with ID+ASD (n = 8). Our findings support the view that short non-verbal tests are more likely to give a similar IQ result as obtained from the WISC-IV. In terms of the time to administer and the stress for participants, they are more appropriate for assessing adolescents with ID.
鉴于智力残疾(ID)青少年的语言、注意力、感知和运动技能有限,以及他们专注于任务的能力有限,为他们找到最合适的智力测试具有挑战性。该研究比较了23名患有ID的青少年在韦氏儿童智力量表第四版(WISC-IV,最广泛使用的智力测试之一)以及三项非言语智商测试(雷文彩色渐进矩阵测试(RCPM)、非言语智力测试第四版和韦氏非言语能力测试)中的表现。结果表明,WISC-IV全量表智商原始分数和量表分数与三项非言语测试的总分高度相关,尽管原始分数的相关性更高,这表明它们可能有助于更好地理解组内差异以及ID个体在评估时的能力。所有参与者在非言语测试中尝试的问题都比言语测试更多。初步分析表明,没有自闭症谱系障碍(ASD)的ID青少年(n = 15)总体得分高于患有ID + ASD的青少年(n = 8)。我们的研究结果支持这样一种观点,即简短的非言语测试更有可能得出与WISC-IV相似的智商结果。就测试实施时间和参与者的压力而言,它们更适合评估患有ID的青少年。