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Fig. 2 | Health and Quality of Life Outcomes

Fig. 2

From: Patient Uncertainty Questionnaire-Rheumatology (PUQ-R): development and validation of a new patient-reported outcome instrument for systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) in a mixed methods study

Fig. 2

PUQ-R Self-management Scale Targeting. The upper histogram (pink blocks) represent the sample distribution for the scale total score whereas the lower histogram (blue blocks) represent the scale item threshold distribution plotted on the same linear measurement continuum. Targeting is suboptimal. The item thresholds distribution does not match the sample distribution well, as no items are located beyond the +3 logit location. This is also displayed by the person mean location (1.276) which is higher than the item threshold mean location which is always set at zero

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Health and Quality of Life Outcomes

ISSN: 1477-7525

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