Measuring self-esteem after spinal cord injury: Development, validation and psychometric characteristics of the SCI-QOL Self-esteem item bank and short form

Short Title:
Measuring self-esteem after spinal cord injury: Development, validation and psychometric characteristics of the SCI-QOL Self-esteem item bank and short form
Model System:
TBI
Reference Type:
Journal Article
Accession No.:
J71742
Journal:
Journal of Spinal Cord Medicine
Year, Volume, Issue, Page(s):
2014, vol. 1, issue 38, pp 377-385
Publication Website:
Abstract:
Article describes the development and psychometric properties of the Spinal Cord Injury-Quality of Life (SCI-QOL) Self-esteem item bank. Using a mixed-methods design, a self-esteem item bank was developed and tested through the use of focus groups with individuals with SCI and clinicians with expertise in SCI, cognitive interviews, and item response theory-based analytic approaches, including tests of model fit, differential item functioning (DIF) and precision. A pool of 30 items was tested at several medical institutions across the United States, including 5 SCI Model System centers and one Veterans Affairs medical center. A total of 717 individuals with SCI completed the self-esteem items. A unidimensional model was observed and measurement precision was good. Eleven items were flagged for DIF; however, effect sizes were negligible with little practical impact on score estimates. The final calibrated item bank resulted in 23 retained items. This study indicates that the SCI-QOL Self-esteem item bank represents a psychometrically robust measurement tool. Short-form items are also suggested and computer adaptive tests are available.
Author(s):
Guller Y, Pan H, Iyer S, Leung L, Cohn R, Fuchs BH, Haley CJ, O'Neil-Pirozzi T, Giacino JT, Stern E
Author Address(es):
Participating Centers:

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