BACKGROUND:The recently refined Demoralization Scale-II (DS-II) is a 16-item, self-report measure of demoralization. Its 2 factorsMeaning and Purpose and Distress and Coping Ability-demonstrate sound internal validity, including item fit, unidimensionality, internal consistency, and test-retest reliability. The convergent and discriminant validity of the DS-II with various measures is reported here. METHODS: Patients who had cancer or other progressive diseases and were receiving palliative care (n 5 211) completed a battery of questionnaires, including the DS-II and measures of symptom burden, quality of life, depression, and attitudes toward the end of life. Spearman q correlations were determined to assess convergent validity. Mann-Whitney U tests with calculated effect sizes were used to examine discriminant validity and establish the minimal clinically important difference (MCID). Cross-tabulation frequencies with chi-square analyses were used to examine discriminant validity with major depression. RESULTS: The DS-II demonstrated convergent validity with measures of psychological distress, quality of life, and attitudes toward the end of life. It also demonstrated discriminant validity, as the DS-II differentiated patients who had different functional performance levels and high/low symptoms, with a difference of 2 points between groups on the DS-II considered clinically meaningful. Furthermore, discriminant validity was demonstrated, as comorbidity with depression was not observed at moderate levels of demoralization. CONCLUSIONS: The DS-II has sound psychometric properties and is an appropriate measure of demoralization. Given its structural simplicity and brevity, it is likely to be a useful tool in meaning-centered therapies. Cancer 2016;122:2260-7. V C 2016 American Cancer Society.KEYWORDS: cancer, construct validity, convergent validity, demoralization, discriminant validity, external validity, revalidation. INTRODUCTIONThe Demoralization Scale-II (DS-II) is a recently refined and revalidated 16-item, self-report measure of demoralization. 1 Demoralization is a maladaptive coping response conceptualized as a loss of meaning and purpose, with feelings of hopelessness and helplessness. 2 It is understood to arise in response to a stressful event or situation, such as the suffering associated with the diagnosis or experience of an advanced cancer. 2 In our recent systematic 3 and conceptual 4 reviews, we provided a discussion on the differences between demoralization and depression and highlighted the finding that there is a level of overlap between these constructs. In a companion to this article in this issue of Cancer, we report the internal validity of the DS-II as a 2-factor model (comprising two 8-item factors: Meaning and Purpose and Distress and Coping Ability) that demonstrated psychometrically sound item fit, unidimensionality, and reliability in patients receiving palliative care. 1 The reduced number of items and the simplified response format make the DS-II more user-friendly in the advanced...
BACKGROUND:The Demoralization Scale (DS) was initially validated in 2004 to enable the measurement of demoralization in patients with advanced cancer. Subsequent shortcomings indicated the need for psychometric strengthening. Here, the authors report on the refinement and revalidation of the DS to form the DS-II, specifically reporting the scale's internal validity. METHODS: Patients with cancer or other progressive diseases who were receiving palliative care (n 5 211) completed a revised version of the 24-item DS and a measure of symptom burden (the Memorial Symptom Assessment Scale). Exploratory factor analysis and Rasch modeling were used to evaluate, modify, and revalidate the scale, providing information about dimensionality, suitability of response format, item fit, item bias, and item difficulty. Test-retest reliability was examined for 58 symptomatically stable patients at a 5-day follow-up. RESULTS: Exploratory factor analysis supported a 22-item, 2-component model. Separate Rasch modeling of each component resulted in collapsing the response option categories and removing 3 items from each component. Both final 8-item subscales met Rasch model expectations and were appropriate to sum as a 16-item total score. The DS-II demonstrated internal consistency and test-retest reliability (Meaning and Purpose subscale: a 5 .84; intraclass correlation [ICC] 5 0.68; Distress and Coping Ability subscale: a 5 .82; ICC 5 0.82; total DS: a 5 .89; ICC 5 0.80). CONCLUSIONS: The DS-II is a 3-point response, self-report scale comprising 16 items and 2 subscales. Given its revalidation, psychometric strengthening, and simplification, the DS-II is an improved and more practical measure of demoralization for research and clinical use. External validation of the DS-II will be reported subsequently. Cancer 2016;122:2251-9. V C 2016 American Cancer Society.KEYWORDS: psychometrics, cancer, reliability, validity, adjustment, coping behavior, demoralization, Rasch modeling. INTRODUCTIONDemoralization has become increasingly recognized in palliative care as a clinical issue requiring assessment and treatment. 1,2 Understood as a state of maladaptive coping, demoralization develops with symptoms of hopelessness and helplessness associated with loss of purpose and meaning in life. 1 In a recent systematic review of 25 studies, clinical prevalence rates for demoralization ranged from 13% to 18% in patients with progressive diseases like cancer. 3 The morale of any patient fluctuates dimensionally from optimism to mild disheartenment, to greater despondency, and potentially to deep despair, which can be associated with a desire for hastened death. 4 Thus, the importance of measuring demoralization has been emphasized with reference to the risk of suicide and its potential relevance in end-of-life decision making. 1 Access to a psychometrically sound measure aids in the clinical assessment of demoralization. 5 Our preliminary validation of the Demoralization Scale (DS) in 2004 created a 24-item self-report scale that proved to be a use...
Introduction. Colorectal cancer (CRC) and its treatments can cause distressing sequelae. We conducted a multicenter randomized controlled trial aiming to improve psychological distress, supportive care needs (SCNs), and quality of life (QOL) of patients with CRC. The intervention, called SurvivorCare (SC), comprised educational materials, needs assessment, survivorship care plan, end‐of‐treatment session, and three follow‐up telephone calls. Methods. At the end of treatment for stage I–III CRC, eligible patients were randomized 1:1 to usual care (UC) or to UC plus SC. Distress (Brief Symptom Inventory 18), SCNs (Cancer Survivors’ Unmet Needs measure), and QOL (European Organization for Research and Treatment of Cancer [EORTC] QOL questionnaires C30 and EORTC CRC module CR29) were assessed at baseline and at 2 and 6 months (follow‐up 1 [FU1] and FU2, respectively). The primary hypothesis was that SC would have a beneficial effect on distress at FU1. The secondary hypotheses were that SC would have a beneficial effect on (a) SCN and QOL at FU1 and on (b) distress, SCNs, and QOL at FU2. A total of 15 items assessed experience of care. Results. Of 221 patients randomly assigned, 4 were ineligible for the study and 1 was lost to FU, leaving 110 in the UC group and 106 in the SC group. Patients’ characteristics included the following: median age, 64 years; men, 52%; colon cancer, 56%; rectal cancer, 35%; overlapping sites of disease, 10%; stage I disease, 7%; stage II, 22%; stage III, 71%. Baseline distress and QOL scores were similar to population norms. Between‐group differences in distress at FU1 (primary outcome) and at FU2, and SCNs and QOL at FU1 and FU2 were small and nonsignificant. Patients in the SC group were more satisfied with survivorship care than those in the UC group (significant differences on 10 of 15 items). Conclusion. The addition of SC to UC did not have a beneficial effect on distress, SCNs, or QOL outcomes, but patients in the SC group were more satisfied with care. Implications for Practice: Some survivors of colorectal cancer report distressing effects after completing treatment. Strategies to identify and respond to survivors’ issues are needed. In a randomized controlled trial, the addition of a nurse‐led supportive care package (SurvivorCare) to usual post‐treatment care did not impact survivors’ distress, quality of life, or unmet needs. However, patients receiving the SurvivorCare intervention were more satisfied with survivorship care. Factors for consideration in the design of subsequent studies are discussed.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.