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. 2005 Dec;40(6 Pt 1):1918-30.
doi: 10.1111/j.1475-6773.2005.00438.x.

Development and testing of a short form of the patient activation measure

Judith H Hibbard  1 , Eldon R Mahoney, Jean Stockard, Martin Tusler
Affiliations

Development and testing of a short form of the patient activation measure

Judith H Hibbard et al. Health Serv Res. 2005 Dec.

Abstract

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.

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Figures

Figure 1
Figure 1
Thirteen-Item Patient Activation Measure with Item Calibrations and the Four Stages Identified
See this image and copyright information in PMC

References

    1. Bandura A. Self-Efficacy Mechanism in Physiological Activation and Health-Promoting Behavior. In: Madden J, Matthysse S, Barchas J, editors. Adaption, Learning and Affect. New York: Raven Press; 1991. pp. 226–69.
    1. Battersby MW, Ask A, Reece MM, Markwick MJ, Collins JP. The Partners in Health Scale: The Development and Psychometric Properties of a Generic Assessment Scale for Chronic Condition Self-Management. Australian Journal of Primary Health. 2003;9:41–52.
    1. Hibbard JH, Stockard J, Mahoney ER, Tusler M. Development of the Patient Activation Measure (PAM): Conceptualizing and Measuring Activation in Patients and Consumers. Health Services Research. 2004;39:1005–26. - PMC - PubMed
    1. Adams K, Greiner AC, Corrigan JM, editors. 1st Annual Crossing the Quality Chasm Summit: A Focus on Communities, pp.26. Washington, DC: National Academies Press; 2004. Institute of Medicine. - PubMed
    1. Prochaska JO, DiClemente CC. Stages and Processes of Self-Change of Smoking: Toward an Integrative Model of Change. Journal of Consulting and Clinical Psychology. 1983;51:390–5. - PubMed

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