DeVylder Jordan E, Hilimire Matthew R
School of Social Work, Columbia University, New York, New York, USA.
Department of Psychology, The College of William & Mary, Williamsburg, Virginia, USA.
Early Interv Psychiatry. 2015 Aug;9(4):331-4. doi: 10.1111/eip.12161. Epub 2014 Jun 23.
Subthreshold psychotic experiences are common in the population and may be clinically significant. Reporting of psychotic experiences through self-report screens may be subject to threats to validity, including social desirability biases. This study examines the influence of social desirability on the reporting of psychotic experiences.
College students (n = 686) completed a psychosis screen and the Marlowe-Crowne social desirability scale as part of a self-report survey battery. Associations between psychosis and social desirability were tested using logistic regression models.
With the exception of auditory hallucinations, all other measures of psychotic experiences were subject to social desirability biases. Respondents who gave more socially desirable answers were less likely to report psychotic experiences.
Respondent's tendency to underreport psychotic experiences should be accounted for when screening for these symptoms clinically. Findings also suggest that population figures based on self-report may underestimate the prevalence of subthreshold delusions but not hallucinations.
阈下精神病性体验在人群中很常见，且可能具有临床意义。通过自我报告筛查来报告精神病性体验可能会受到效度威胁，包括社会期望偏差。本研究考察社会期望对精神病性体验报告的影响。
作为自我报告调查问卷的一部分，大学生（n = 686）完成了一项精神病筛查和马洛-克劳恩社会期望量表。使用逻辑回归模型检验精神病与社会期望之间的关联。
除幻听外，所有其他精神病性体验指标均受到社会期望偏差的影响。给出更符合社会期望答案的受访者报告精神病性体验的可能性较小。
在临床筛查这些症状时，应考虑受访者少报精神病性体验的倾向。研究结果还表明，基于自我报告的人群数据可能低估阈下妄想的患病率，但不会低估幻觉的患病率。
