General Practice and Primary Care Research Unit, University of Cambridge, Cambridge, UK.
Patient Educ Couns. 2012 Apr;87(1):120-4. doi: 10.1016/j.pec.2011.07.011. Epub 2011 Aug 17.
To examine the validity and utility of the Explanation and Planning Scale (EPSCALE) instrument, a widely used scale for teaching and assessment of explanation and planning skills used by clinicians during the medical interview.
Data obtained across 4 OSCE stations during medical student final MB examinations. Exploratory factor analysis, using a single factor and two factor models (based on prior theory) and a six factor empirical model, suggested by parallel analysis.
124 medical students sitting final MB examinations at the University of Cambridge.
A single factor model represented a very poor fit. A two factor model with factors labelled 'Explanation' and 'Planning' produced an improved fit, but the best was seen with a six factor model, with factors which broadly corresponded to the domains of the Calgary-Cambridge guide.
These factor models provide supportive evidence for the construct validity of EPSCALE.
EPSCALE can justifiably be used in the assessment of shared-decision making skills.
检验广泛应用于临床医生在医疗访谈中教授和评估解释和计划技能的工具——解释和计划量表（EPSCALE）的有效性和实用性。
在剑桥大学医学生期末考试的 4 个 OSCE 站获得的数据。使用单因素和双因素模型（基于先前的理论）以及平行分析建议的六因素实证模型进行探索性因素分析。
在剑桥大学参加期末考试的 124 名医学生。
单因素模型表现出很差的拟合度。一个标签为“解释”和“计划”的双因素模型产生了更好的拟合度，但最好的是六因素模型，其因素大致对应于卡尔加里-剑桥指南的领域。
这些因素模型为 EPSCALE 的结构有效性提供了支持性证据。
EPSCALE 可以合理地用于评估共同决策技能。
