1. Rasch Analysis of the Edmonton Symptom Assessment System
Emma Sprague, MHSc(Nursing), Richard J. Siegert, PhD, Oleg Medvedev, PhD, Margaret H. Roberts, BHSc(Nursing), DClinPsych 
Journal of Pain and Symptom Management 
Volume 55, Issue 5, Pages (May 2018)
DOI: /j.jpainsymman
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2. Fig. 1
Item category probability curves for Item 1 of the Edmonton Symptom Assessment System, before rescoring.
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2018 The Authors Terms and Conditions

3. Fig. 2
Item category probability curves for Item 1 of the Edmonton Symptom Assessment System, after rescoring.
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2018 The Authors Terms and Conditions

4. Fig. 3
Threshold map for the 12 Edmonton Symptom Assessment System items after uniform rescoring, ordered by difficulty.
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2018 The Authors Terms and Conditions

5. Fig. 4 Person-item threshold distribution.
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2018 The Authors Terms and Conditions