Moses J A, Johnson G L, Lewis G P
Int J Neurosci. 1983 Oct;21(1-2):107-12. doi: 10.3109/00207458308986125.
The 30 scales developed from scalewise factor analyses of the items of the Luria-Nebraska Neuropsychological Battery were subjected to internal consistency analyses by means of coefficient alpha for a mixed brain-damaged group and neurologically normal groups of alcoholic and schizophrenic or schizoaffective disorder patients. Thirty-seven per cent of the factor scales failed to reach a 0.70 coefficient alpha level for the mixed brain damaged group, but that figure was reduced to 23% with use of scales based on an orthogonal factor solution for the Receptive Speech scale. Further refinement of the internally consistent factor scales was recommended. Internal consistency values were too low for the factor scales with the alcoholic and psychotic samples to recommend their clinical use with these groups. Methodological issues in the derivation and application of the factor scales were discussed.
对从鲁利亚-内布拉斯加神经心理成套测验项目的量表层面因素分析得出的30个量表，通过计算α系数，对脑损伤混合组以及酒精中毒、精神分裂症或分裂情感性障碍患者的神经学正常组进行了内部一致性分析。对于脑损伤混合组，37%的因素量表未达到α系数0.70的水平，但使用基于接受性言语量表正交因素解的量表时，这一数字降至23%。建议进一步完善内部一致性因素量表。对于酒精中毒和精神病样本的因素量表，其内部一致性值过低，不建议在这些群体中临床使用。讨论了因素量表推导和应用中的方法学问题。
