PASAT and components of WAIS-R performance: Convergent and discriminant validity
PASAT and components of WAIS-R performance: Convergent and discriminant validity
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DOI：
10.1080/713755575
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发表时间：
1998-05-01
影响因子：
2.7
通讯作者：
Allan, KM
中科院分区：
文献类型：
--
作者：
Crawford, JR;Obonsawin, NC;Allan, KM
152名健康受试者完成了节奏听觉序列加法任务（PASAT）（Gronwall，1977）、全长韦氏成人智力量表修订版（WAIS-R）（Wechsler，1981）和全国成人阅读测试（NART）（纳尔逊，1982）。主成分分析表明，PASAT对一般智力（g）的负荷很大（0.72），超过了许多WAIS-R分测验。在轮换之后，PASAT在WAIS-R注意力/集中系数上的负荷很高（0.75）。巢式验证性因素分析模型的评价证实，虽然PASAT不是独立的一般智力，它仍然加载显着的注意力/浓度（.44）时，它被允许同时加载g。提供了三个年龄段的常规规范性数据。此外，还建立了回归方程，以便将个体获得的PASAT评分与其发病前估计的PASAT评分（使用NART和年龄作为预测因子）以及根据其当前一般智力水平预测的评分（使用WAIS-R IQ和年龄作为预测因子）进行定量比较。这两组预测变量占PASAT方差的高度显着比例;前者的多重R为0.52，后者为0.66。
The Paced Auditory Serial Addition Task (PASAT) (Gronwall, 1977), a full-length Wechsler Adult Intelligence Scale-Revised (WAIS-R) (Wechsler, 1981), and the National Adult Reading Test (NART) (Nelson, 1982) were completed by a sample of 152 healthy participants. Principal components analysis revealed that PASAT's loading on general intelligence (g) was substantial (.72) and exceeded that of many WAIS-R subtests. Following rotation, PASAT loaded highly (.75) on the WAIS-R attention/concentration factor. Evaluation of nested confirmatory factor analytic models confirmed that, although PASAT is not independent of general intellectual ability, it still loaded significantly on attention/concentration (.44) when it was permitted to load simultaneously on g. Conventional normative data were provided for three age bands. In addition, regression equations were built to permit a quantitative comparison of individuals' obtained PASAT scores with their estimated premorbid PASAT scores (using NART and age as predictors) and with scores predicted from their current general level of intellectual ability (using WAIS-R IQ and age as predictors). Both these sets of predictor variables accounted for highly significant proportions of PASAT variance; Multiple R was .52 for the former and .66 for the latter.