Andres Patricia L, Haley Stephen M, Ni Peng Sheng
Research and Training Center on Measuring Rehabilitation Outcomes, Boston University, Boston, Massachusetts 02215, USA.
Am J Phys Med Rehabil. 2003 Aug;82(8):614-21. doi: 10.1097/01.PHM.0000073818.34847.F0.
A major challenge in the development of a comprehensive measurement system to evaluate effectiveness across a broad range of postacute care settings is the stability and consistency of outcomes measures across respondents and settings. The objective of this study was to investigate the test-retest and subject-proxy reliability of activity scores for use in a new postacute care outcome instrument using an interview format across different care settings.
Twenty-five subjects were randomly selected from a larger study of 485 individuals and were interviewed on two occasions within 1 to 4 days to assess self-reported test-retest reliability of summary scores of the Activity Measure-Post-Acute Care item pool. Proxy reliability was tested by interviewing the primary physical or occupational therapist or family member using an identical questionnaire in addition to the subject in 45 patients.
Test-retest and subject-proxy reliability was acceptable for the three domains of the activity construct: physical and movement, personal and instrumental, and applied cognition with intraclass correlation coefficients of the summary scores of each of the three domains ranging between 0.91 and 0.97 for test-retest and 0.68 and 0.90 for subject-proxy.
Reliability is adequate to justify use of these activity scales across respondents and settings.
开发一个全面的测量系统以评估广泛的急性后期护理环境中的有效性，其中一个主要挑战是跨受访者和环境的结果测量的稳定性和一致性。本研究的目的是使用一种访谈形式，在不同护理环境中调查一种新的急性后期护理结果工具中活动评分的重测信度和患者与代理人之间的信度。
从一项对485人的更大规模研究中随机抽取25名受试者，并在1至4天内进行两次访谈，以评估活动测量-急性后期护理项目池汇总评分的自我报告重测信度。除了对45名患者的受试者进行访谈外，还通过使用相同问卷对主要物理治疗师或职业治疗师或家庭成员进行访谈来测试代理人信度。
活动结构的三个领域的重测信度和患者与代理人之间的信度是可接受的：身体和运动、个人和工具性、以及应用认知，三个领域汇总评分的组内相关系数，重测信度在0.91至0.97之间，患者与代理人之间的信度在0.68至0.90之间。
信度足以证明这些活动量表可在不同受访者和环境中使用。
