Objective: The purpose of this study was to gather validity
evidence for an innovative experience of hope scale, the Hope
Differential-Short (HDS), and evaluate its clinical utility for
assessing hope in advanced cancer patients.
Methods: A consecutive sampling approach was used to recruit
96 patients from an inpatient tertiary palliative care unit and three
hospice settings. Each participant completed an in-person survey
interview, consisting of the following measures: HDS (nine items), Herth
Hope Index (HHI), hope visual analog scale (Hope-VAS) and Edmonton Symptom
Assessment System (ESAS).
Results: Using factor analytic procedures, a two-factor
structure for the HDS was identified, consisting of authentic
spirit (Factor I) and comfort (Factor II). The HDS factors
had good overall internal consistency (α = 0.83), with Factor I (α
= 0.83) being higher than Factor II (α = 0.69). The two factors
positively correlated with the HHI, Hope-VAS, and one of the ESAS visual
analog scales, well-being (range: 0.38 to 0.64) and negatively correlated
with depression and anxiety, as measured by the ESAS (range: −0.25
to −0.42).
Significance of results: This is the first validation study
of the HDS in advanced cancer patients. Its promising psychometric
properties and brief patient-oriented nature provide a solid initial
foundation for its future use as a clinical assessment measure in oncology
and palliative care. Additional studies are warranted to gather further
validity evidence for the HDS before its routine use in clinical
practice.