Ritzler B A, Rinehart K
Schizophr Bull. 1981;7(4):729-35. doi: 10.1093/schbul/7.4.729.
Schizophrenia is but one form of psychosis; therefore, it is important to control for the psychotic factor in studies of the schizophrenic syndrome. A survey was done of 478 articles in 15 major psychiatric and psychological journals to determine the frequency of controls for psychosis in schizophrenia research. The survey covered 10 years from 1970 to 1979. Controls for psychosis were found in 11 percent of the articles surveyed. Nonpsychotic psychiatric controls appeared with a frequency of 38 percent. Nonpsychiatric controls (mostly normals) appeared with a frequency of 73 percent. A slight trend was observed for a gradual increase in the frequency of controls for psychosis over the last several years of the decade. Much of this increase was attributable to the innovative use of nonpsychotic schizophrenics as a control for psychosis and severity of pathology. These findings suggest that more attention should be given to controls for psychosis by investigators and editors in the publishing of research on schizophrenia.
精神分裂症只是精神病的一种形式；因此，在精神分裂症综合征的研究中控制精神病因素很重要。对15种主要精神病学和心理学杂志上的478篇文章进行了一项调查，以确定精神分裂症研究中控制精神病的频率。该调查涵盖了1970年至1979年的10年。在所调查的文章中，11%有对精神病的控制。非精神病性精神科对照出现的频率为38%。非精神科对照（大多为正常人）出现的频率为73%。在这十年的最后几年里，观察到对精神病控制的频率有逐渐增加的轻微趋势。这种增加很大程度上归因于创新性地使用非精神病性精神分裂症患者作为精神病和病理严重程度的对照。这些发现表明，在精神分裂症研究的出版过程中，研究者和编辑应更多地关注对精神病的控制。
