Abbreviated instrument to measure hope: development and psychometric evaluation... the Herth Hope Index convenience sample of 172 ill adults. Alpha coefficient was 0.97 with a 2-week test-retest reliability of 0.91. Criterion-related validity was established by correlating the HHI with the parent HHS (r=0.92), the Existential Well-Being Scale (r=0.84) and the Nowotny Hope Scale (r=0.81). Divergent validity with the Hopelessness Scale was established (r=-0.73). Construct validity was supported through the factorial isolation of three factors: (a) temporality and future; (b) positive readiness and expectancy; (c) interconnectedness. These three factors accounted for 41% of the total variance in the measure.
Herth K; Journal of Advanced Nursing, 1992, vol. 17, issue 10, p 1251, ISSN 03092402. ISBN 03092402.
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