Psychometric Properties of the Satisfaction With Life Scale in People With Traumatic Brain, Spinal Cord, or Burn Injury: A National Institute on Disability, Independent Living, and Rehabilitation Research Model System Study

被引：23

作者：

Amtmann, Dagmar ^{[1
]}

Bocell, Fraser D. ^{[1
]}

Bamer, Alyssa ^{[1
]}

Heinemann, Allen W. ^{[2
,3
]}

Hoffman, Jeanne M. ^{[1
]}

Juengst, Shannon B. ^{[4
]}

Rosenberg, Marta ^{[5
]}

Schneider, Jeffery C. ^{[6
]}

Wiechman, Shelley ^{[1
]}

McMullen, Kara ^{[1
]}

机构：

[1] Univ Washington, Box 354237, Seattle, WA 98195 USA

[2] Northwestern Univ, Chicago, IL 60611 USA

[3] Rehabil Inst Chicago, Chicago, IL 60611 USA

[4] Univ Pittsburgh, Pittsburgh, PA USA

[5] Univ Texas Med Branch, Galveston, TX 77555 USA

[6] Harvard Med Sch, Boston, MA 02115 USA

来源：

ASSESSMENT | 2019年 / 26卷 / 04期

关键词：

measurement invariance; item response theory; Satisfaction With Life Scale; traumatic brain injury; spinal cord injury; burn injury; QUALITY-OF-LIFE; ITEM RESPONSE THEORY; MEASUREMENT INVARIANCE; INTERNAL CONSISTENCY; FIT INDEXES; HEALTH; OUTCOMES; INFORMATION; PERFORMANCE; PREDICTORS;

D O I：

10.1177/1073191117693921

中图分类号：

B849 [应用心理学];

学科分类号：

040203 ;

摘要：

This study evaluated the measurement properties of the Satisfaction With Life Scale (SWLS) in a sample of 17,897 people with spinal cord injury (48%, n = 8,566), traumatic brain injury (44%, n = 7,941), and burn injury (8%, n = 1,390), 1 year following injury. We examined measurement invariance across the groups, unidimensionality, local independence, reliability from a classical test and item response theory (IRT) framework, and fit to a unidimensional IRT model. The results support unidimensionality and local independence of the SWLS. Reliability was adequate from a classical test and IRT perspective. IRT analysis found that the SWLS could be improved by using only five response categories rather than seven and by removing the fifth item, "If I could live my life over, I would change almost nothing." This item functions poorly and reduces instrument reliability. With these revisions, the SWLS is a useful instrument to monitor an important outcome of trauma rehabilitation.

引用

页码：695 / 705

页数：11

共 73 条

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