Gonnella C, Paris S V, Kutner M
Phys Ther. 1982 Apr;62(4):436-44. doi: 10.1093/ptj/62.4.436.
Reliable measurements are prerequisite to the successful conduct of outcome studies. In a study of the performance of physical therapists (n = 5) in evaluating passive mobility of the vertebral column with normal subjects (n = 5), several sources of measurement variability were assessed: the reliability within and between therapists, the criteria for grading, and the subjects themselves. Intratherapist reliability was found to be dependable; intertherapist reliability was not. Problems that merit further study were identified as idiosyncratic behaviors that may develop with experience, subject characteristics, and the instrument itself. Periodic assessment of the reliability of therapists in performing evaluations is recommended because of its importance to therapeutic programming.
可靠的测量是成功开展结果研究的前提条件。在一项对物理治疗师（n = 5）评估正常受试者（n = 5）脊柱被动活动度表现的研究中，评估了几个测量变异性来源：治疗师内部和之间的可靠性、分级标准以及受试者本身。发现治疗师内部的可靠性是可靠的；治疗师之间的可靠性则不然。值得进一步研究的问题被确定为可能随着经验、受试者特征和仪器本身而出现的特殊行为。由于其对治疗规划的重要性，建议定期评估治疗师进行评估的可靠性。
