Holland T R, Levi M, Watson C G
J Clin Psychol. 1981 Apr;37(2):394-6.
Made comparisons between MMPI basic scales and two-point codes in the discrimination of brain-damaged, schizophrenic, neurotic, and alcoholic patients (N = 380). Although levels of group differentiation were relatively low for both scales and codes, the latter approach was seen to result in a considerable loss of information and a concomitant reduction in criterion-related validity.
对明尼苏达多相人格量表（MMPI）基本量表和两点编码在区分脑损伤患者、精神分裂症患者、神经症患者和酗酒患者（N = 380）方面进行了比较。尽管量表和编码的组间区分水平都相对较低，但后一种方法被认为会导致大量信息丢失，并随之降低与标准相关的效度。
