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Arch Phys Med Rehabil. 2018 Mar;99(3):521-528. doi: 10.1016/j.apmr.2017.06.037. Epub 2017 Sep 6.

Developing Item Response Theory-Based Short Forms to Measure the Social Impact of Burn Injuries.

Author information

1
Health & Disability Research Institute, Boston University School of Public Health, Boston, MA. Electronic address: memarino@bu.edu.
2
Department of Health Law, Policy, and Management, Center for the Assessment of Pharmaceutical Practices (CAPP), Boston University School of Public Health, Boston, MA.
3
Health & Disability Research Institute, Boston University School of Public Health, Boston, MA.
4
Department of Surgery, Massachusetts General Hospital, Boston, MA; Harvard Medical School, Boston, MA; Shriners Hospitals for Children - Boston, Boston, MA.
5
Harvard Medical School, Boston, MA; Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Boston, MA.
6
Phoenix Society for Burn Survivors, Wyoming, MI.

Abstract

OBJECTIVE:

To develop self-reported short forms for the Life Impact Burn Recovery Evaluation (LIBRE) Profile.

DESIGN:

Short forms based on the item parameters of discrimination and average difficulty.

SETTING:

A support network for burn survivors, peer support networks, social media, and mailings.

PARTICIPANTS:

Burn survivors (N=601) older than 18 years.

INTERVENTIONS:

Not applicable.

MAIN OUTCOME MEASURES:

The LIBRE Profile.

RESULTS:

Ten-item short forms were developed to cover the 6 LIBRE Profile scales: Relationships with Family & Friends, Social Interactions, Social Activities, Work & Employment, Romantic Relationships, and Sexual Relationships. Ceiling effects were ≤15% for all scales; floor effects were <1% for all scales. The marginal reliability of the short forms ranged from .85 to .89.

CONCLUSIONS:

The LIBRE Profile-Short Forms demonstrated credible psychometric properties. The short form version provides a viable alternative to administering the LIBRE Profile when resources do not allow computer or Internet access. The full item bank, computerized adaptive test, and short forms are all scored along the same metric, and therefore scores are comparable regardless of the mode of administration.

KEYWORDS:

Burn injury; Item response theory; Outcome measurement; Psychometrics; Questionnaires; Rehabilitation

PMID:
28888383
DOI:
10.1016/j.apmr.2017.06.037
[Indexed for MEDLINE]

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