Boston University School of Public Health, Department of Health Law, Policy, and Management, Boston, Massachusetts, United States of America.
Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts, United States of America.
PLoS One. 2019 May 6;14(5):e0215898. doi: 10.1371/journal.pone.0215898. eCollection 2019.
This paper explores extreme response style to the Life Impact Burn Recovery Evaluation (LIBRE) Profile, a measure of social participation in burn survivors. We fit a Multidimensional Generalized Partial Credit Model (MGPCM) with a positive extreme response style (PERS) factor and compared this model with the original MGPCM, estimated the impact that PERS has on scores, and examined the personal characteristics that may result in an individual more likely to respond in a fashion that would inflate their true low scores. The average impact of the PERS, based upon the root mean squared bias, ranged from 0.27 to 0.50 of a standard deviation of the scale. Individuals who were older, had participated in a burn survivor support group, and had selected to self-administer the measure were less likely to have a high PERS bias that masks low scores. Future work can consider PERS when measuring the psychosocial impacts of burn injuries and other health conditions.
本文探讨了对生命影响烧伤康复评估（LIBRE）量表极端反应模式的研究，该量表用于评估烧伤幸存者的社会参与度。我们拟合了一个多维广义部分信用模型（MGPCM），其中包含一个积极极端反应模式（PERS）因子，并将该模型与原始 MGPCM 进行了比较，估计了 PERS 对得分的影响，并研究了可能导致个体更倾向于以夸大其真实低分数的方式做出反应的个人特征。基于均方根偏差的 PERS 的平均影响范围为 0.27 至 0.50 个量表标准差。年龄较大、参加过烧伤幸存者支持小组以及选择自行测量的个体，其 PERS 偏差掩盖低分数的可能性较小。未来的研究可以在衡量烧伤和其他健康状况的心理社会影响时考虑 PERS。
