Berk R A
J Abnorm Child Psychol. 1979 Mar;7(1):113-9. doi: 10.1007/BF00924515.
This study was designed to determine the discriminative efficiency of the Bayley Mental and Motor Scales for classifying infants as neurologically suspicious and neurologically normal. The two groups employed in the study were formed on the basis of the results from comprehensive neurological examinations performed at ages 1 and 7. Three discriminant function analyses were conducted, one for each scale separately and a third incorporating both scales using a stepwise procedure. Efficiency was measured in terms of number of correct and incorrect classifications, false positive and false negative errors, and validity coefficients. Comparisons among the analyses were examined by means of relative discrimination power and incremental validity. The findings suggested that the Motor Scale provides the most accurate identification of infants with suspected neurological impairments. A statistically significant likelihood discriminant function derived from both scales yielded some additional discriminative power. The law of parsimony, however, dictated the use of the single Motor Scale.
本研究旨在确定贝利智力与运动量表在将婴儿分类为神经学上可疑和神经学上正常方面的判别效率。研究中使用的两组是根据1岁和7岁时进行的全面神经学检查结果形成的。进行了三次判别函数分析，一次针对每个量表单独进行，第三次使用逐步程序将两个量表结合起来。效率通过正确和错误分类的数量、假阳性和假阴性错误以及效度系数来衡量。通过相对判别力和增量效度对分析结果进行比较。研究结果表明，运动量表能最准确地识别疑似神经损伤的婴儿。从两个量表得出的具有统计学意义的似然判别函数产生了一些额外的判别力。然而，简约法则规定使用单一的运动量表。
