Murray R M, Cooper J E, Smith A
Psychol Med. 1979 May;9(2):305-11. doi: 10.1017/s0033291700030816.
The Leyton Obsessional Inventory was administered to 73 obsessive-compulsive neurotics, and their responses compared with those of 100 normal subjects. The ratio of the mean patient to normal scores ranged from 2.4:1 for obsessional traits and 3.2:1 for symptoms to 6.2:1 for resistance and 12.5:1 for interference with other activities. A principal components analysis on the patients' replies produced 3 unitary components (household order, personal contamination, and doubting) plus 2 bipolar components (checking/parsimony and desire for closure/unpleasant ruminations). These appeared to be more definitive representations of components identified from a similar analysis on normal subjects, suggesting that obsessional neurotics differ from normal subjects quantitatively rather than qualitatively. A cluster analysis on the patients' responses produced 3 subgroups. Thirty-two patients were predominantly hesitant and indecisive ('doubters'), 30 were concerned with bodily and clothing contamination ('contaminators'), and 7 were preoccupied with checking ('checkers').
对73名强迫性神经症患者进行了莱顿强迫观念量表测试，并将他们的回答与100名正常受试者的回答进行了比较。患者平均得分与正常得分的比率，强迫观念特征为2.4:1，症状为3.2:1，抵抗为6.2:1，对其他活动的干扰为12.5:1。对患者回答进行的主成分分析产生了3个单一成分（家庭秩序、个人污染和怀疑）以及2个双极成分（检查/吝啬和对结束的渴望/不愉快的沉思）。这些似乎是对正常受试者进行类似分析所确定成分的更明确表述，表明强迫性神经症患者与正常受试者的差异在于数量而非质量。对患者回答进行的聚类分析产生了3个亚组。32名患者主要表现为犹豫不决（“怀疑者”），30名患者担心身体和衣物污染（“污染者”），7名患者专注于检查（“检查者”）。
