School of Clinical Medicine, University of Cambridge, UK.
Patient Educ Couns. 2011 Jan;82(1):89-93. doi: 10.1016/j.pec.2010.02.022. Epub 2010 Mar 24.
to evaluate the content validity, internal consistency and generalisability of EPSCALE, a new rating scale to measure communication skills in explanation and planning.
content validity: consensus exercise and expert review. Internal consistency and generalisability: 124 clinical students undertaking 4 OSCE stations with simulated patients, with one observer (hospital specialist, GP or communication specialist) per station, during finals examinations. Internal consistency estimated by coefficient alpha, generalisability estimated by generalisability coefficient and variance components using EPSCALE.
content validity was supported by consensus exercise and expert review. Internal consistency was high with a coefficient alpha of greater than 0.8 for all four explanation and planning stations in the finals exam. Generalisability coefficient for 4 OSCE stations was 0.50.
this paper provides initial evidence that EPSCALE has content validity and high internal consistency when used to assess explanation and planning skills in the consultation. It defines the generalisability of this new rating scale. Further work is needed to explore the scale's validity by a range of other measures.
评估 EPSCALE 的内容效度、内部一致性和可推广性，这是一种新的评分量表，用于衡量解释和计划方面的沟通技巧。
内容效度：共识性研究和专家评审。内部一致性和可推广性：124 名临床学生在期末考试中完成了 4 个有模拟患者的 OSCE 站，每个站有 1 名观察者（医院专家、全科医生或沟通专家）。内部一致性用 EPSCALE 的 alpha 系数来估计，可推广性用可推广系数和方差分量来估计。
内容效度得到了共识性研究和专家评审的支持。在期末考试的所有 4 个解释和计划站中，内部一致性都很高，alpha 系数均大于 0.8。4 个 OSCE 站的可推广系数为 0.50。
本文初步证明，在评估咨询中的解释和计划技能时，EPSCALE 具有内容效度和较高的内部一致性。它定义了这个新评分量表的可推广性。还需要进一步研究来通过其他一系列指标来探索该量表的有效性。
