A review of clinical records was conducted for children with developmental, emotional, and behavioral difficulties who were assessed with both the Wechsler preschool and primary scale of intelligence-third edition (WPPSI-IIICDN; Wechsler, 2004) and the Leiter international performance scale-revised (Leiter-R; Roid & Miller, 1997) within the same psychological evaluation. Forty children, ages 3-7, were included in this study. Pearson correlations showed that the IQ scores of the two instruments are strongly related (r > .70; p < .001). However, paired t-tests showed that overall Leiter-R scores (M = 99.03) were significantly higher than WPPSI-IIICDN scores (PIQ; M = 82.28, FSIQ; M = 75.24) (p < .001). The discrepancies between the instrument's scores were clinically important as the use of only one of the two instruments could result in misclassification of child intellectual ability. These results should prompt professionals working with this clinical population to be cautious when using results from a single instrument in a child's intellectual evaluation.

中文翻译：

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Wechsler Preschool and Primary Scale of Intelligence-第三版与临床转诊儿童的 Leiter-R 智力评估的比较。

对发育、情绪和行为困难儿童的临床记录进行审查，这些儿童使用韦氏学前和初级智力量表第三版 (WPPSI-IIICDN; Wechsler, 2004) 和修订的 Leiter 国际表现量表进行评估(Leiter-R; Roid & Miller, 1997) 在相同的心理评估中。这项研究包括 40 名 3-7 岁的儿童。Pearson 相关性表明，两种工具的 IQ 分数密切相关（r > .70；p < .001）。然而，配对 t 检验显示 Leiter-R 总分 (M = 99.03) 显着高于 WPPSI-IIICDN 分数 (PIQ; M = 82.28, FSIQ; M = 75.24) (p < .001)。仪器之间的差异' s 分数在临床上很重要，因为仅使用两种工具中的一种可能会导致儿童智力的错误分类。这些结果应促使与该临床人群一起工作的专业人员在儿童智力评估中使用单一仪器的结果时要谨慎。