We analyzed data from the WASI–II manual to determine discrepancy score reliabilities of the Verbal Comprehension (VCI) and Perceptual Reasoning (PRI) indexes and the four subtests in the child and adult standardization samples. Reliabilities of the VCI–PRI discrepancy scores range from .78 to .86 for children and .82 to .89 for adults and generally are large enough to justify hypothesis generation. Discrepancy score reliabilities of the subtests range from .64 to .82 and .66 to .84 for children and adults, respectively, and therefore must be considered on a score-by-score basis in formulating hypotheses. Tables are provided to identify significant differences between pairs of subtests and to determine ipsative strengths and weaknesses when each subtest is compared to the mean of four subtests. The use of confidence intervals for the interpretation of discrepancy scores is presented. If additional discrepancy score reliabilities and cut-offs are desired, the necessary formulas are provided.

我们分析了 WASI-II 手册中的数据，以确定语言理解 (VCI) 和知觉推理 (PRI) 指数以及儿童和成人标准化样本中的四个子测试的差异评分可靠性。VCI-PRI 差异分数的可靠性范围为儿童的 0.78 至 0.86 和成人的 0.82 至 0.89，并且通常大到足以证明假设生成的合理性。对于儿童和成人，子测试的差异分数可靠性范围分别为 0.64 至 0.82 和 0.66 至 0.84，因此在制定假设时必须逐分考虑。提供表格以识别子测试对之间的显着差异，并在将每个子测试与四个子测试的平均值进行比较时确定ipsative 的优势和劣势。介绍了使用置信区间来解释差异分数。如果需要额外的差异分数可靠性和临界值，则提供必要的公式。