Development and testing of a short form of the patient activation measure
Development and testing of a short form of the patient activation measure
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DOI：
10.1111/j.1475-6773.2005.00438.x
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发表时间：
2005-12-01
影响因子：
3.4
通讯作者：
Tusler, M
中科院分区：
文献类型：
--
作者：
Hibbard, JH;Mahoney, ER;Tusler, M
目标。患者激活测量（PAM）是一项22项的测量，评估患者的知识、技能和自我管理的信心。该措施是利用拉希分析，是一个区间水平，一维，古特曼类措施。目前的分析旨在减少测量中的项目数量，同时保持足够的精度。研究方法。我们依赖于Rasch分析的迭代使用来识别可以在不损失显著精度和可靠性的情况下消除的项目。随着每一个项目的删除，项目量表的位置被重新校准，并对人的可靠性进行评估，以检查是否以及有多少测量精度的下降是由于删除项目造成的。数据源。分析中使用的数据与最初的22项测量中使用的数据相同。这些数据是在2003年通过随机选择的1515名成年人的电话调查收集的。主要的发现。分析得出了一个包含13个项目的测量方法，与最初的22个项目的版本具有相似的心理测量特性。13项测试的得分范围从38.6到53.0（理论0-100分制）。与最初的22项版本相比，值的范围基本上没有变化。亚组分析表明，在某些亚组中存在轻微的精度损失。分析结果表明，缩短的13项版本是可靠的和有效的。
Objective. The Patient Activation Measure (PAM) is a 22-item measure that assesses patient knowledge, skill, and confidence for self-management. The measure was developed using Rasch analyses and is an interval level, unidimensional, Guttman-like measure. The current analysis is aimed at reducing the number of items in the measure while maintaining adequate precision.Study Methods. We relied on an iterative use of Rasch analysis to identify items that could be eliminated without loss of significant precision and reliability. With each item deletion, the item scale locations were recalibrated and the person reliability evaluated to check if and how much of a decline in precision of measurement resulted from the deletion of the item.Data Sources. The data used in the analysis were the same data used in the development of the original 22-item measure. These data were collected in 2003 via a telephone survey of 1,515 randomly selected adults.Principal Findings. The analysis yielded a 13-item measure that has psychometric properties similar to the original 22-item version. The scores for the 13-item measure range in value from 38.6 to 53.0 (on a theoretical 0-100 point scale). The range of values is essentially unchanged from the original 22-item version. Subgroup analysis suggests that there is a slight loss of precision with some subgroups.Conclusions. The results of the analysis indicate that the shortened 13-item version is both reliable and valid.