Pauli Roman, Wilhelmy Saskia
Institute of History, Theory and Ethics of Medicine, RWTH Aachen, Aachen, Germany.
Current affiliation: Institute for Occupational, Social and Environmental Medicine, RWTH Aachen, Aachen, Germany.
PeerJ. 2021 Dec 8;9:e12604. doi: 10.7717/peerj.12604. eCollection 2021.
The Patient-Practitioner Orientation Scale (PPOS) was originally developed to compare doctor's and patient's consensus regarding patient centeredness. Research assumed PPOS measurements to be comparable across different groups of participants, however, without assessing the actual validity of this assumption. In this study, we investigate the psychometric properties and measurement invariance of a short version of the German translation of the PPOS.
Based on a cross-sectional survey of = 332 medical students, we present a short version of the German Patient-Practitioner-Orientation Scale (PPOS-D6) and examine its psychometric properties as well as measurement invariance across participants with varying levels of medical experience and gender using multigroup confirmatory factor analyses.
Results indicate that PPOS-D6 provides valid and reliable measurements of patient-centeredness that are invariant across participants with different medical experience. Preliminary results also suggest invariance across gender.
PPOS-D6 is a suitable and efficient measure to compare group-specific attitudes towards the doctor-patient interaction. Additional research on convergent and discriminant validity and divergent study samples is advised.
患者-从业者导向量表（PPOS）最初是为了比较医生和患者在以患者为中心方面的共识而开发的。研究假设PPOS测量在不同参与者群体中具有可比性，然而，并未评估这一假设的实际有效性。在本研究中，我们调查了PPOS德文版简版的心理测量特性和测量不变性。
基于对332名医学生的横断面调查，我们呈现了德文版患者-从业者导向量表简版（PPOS-D6），并使用多组验证性因素分析检验其心理测量特性以及不同医学经验水平和性别的参与者之间的测量不变性。
结果表明，PPOS-D6提供了关于以患者为中心的有效且可靠的测量，这些测量在不同医学经验的参与者中是不变的。初步结果还表明在性别方面具有不变性。
PPOS-D6是比较特定群体对医患互动态度的合适且有效的测量工具。建议对收敛效度、区分效度和不同研究样本进行更多研究。
