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 1356-1363 (May 2018) DOI: 10.1016/j.jpainsymman.2018.01.016 Copyright © 2018 The Authors Terms and Conditions
Fig. 1 Item category probability curves for Item 1 of the Edmonton Symptom Assessment System, before rescoring. Journal of Pain and Symptom Management 2018 55, 1356-1363DOI: (10.1016/j.jpainsymman.2018.01.016) Copyright © 2018 The Authors Terms and Conditions
Fig. 2 Item category probability curves for Item 1 of the Edmonton Symptom Assessment System, after rescoring. Journal of Pain and Symptom Management 2018 55, 1356-1363DOI: (10.1016/j.jpainsymman.2018.01.016) Copyright © 2018 The Authors Terms and Conditions
Fig. 3 Threshold map for the 12 Edmonton Symptom Assessment System items after uniform rescoring, ordered by difficulty. Journal of Pain and Symptom Management 2018 55, 1356-1363DOI: (10.1016/j.jpainsymman.2018.01.016) Copyright © 2018 The Authors Terms and Conditions
Fig. 4 Person-item threshold distribution. Journal of Pain and Symptom Management 2018 55, 1356-1363DOI: (10.1016/j.jpainsymman.2018.01.016) Copyright © 2018 The Authors Terms and Conditions