Document Detail

Pressure ulcer prevention: development and psychometric validation of a knowledge assessment instrument.
MedLine Citation:
PMID:  19781701     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Profound knowledge of pressure ulcers is important to enable good prevention. Validity and reliability of instruments assessing pressure ulcer knowledge are limited evaluated in previous research. AIMS AND OBJECTIVES: To develop a valid and reliable instrument to assess knowledge of pressure ulcer prevention. DESIGN: Prospective psychometric instrument validation study. METHODS: An extensive literature review was performed to develop an instrument to assess knowledge of pressure ulcer prevention. Face and content validity were evaluated in a double Delphi procedure by an expert panel of nine trustees of the European Pressure Ulcer Advisory Panel (EPUAP) who each have extensive experience in pressure ulcer care and research (PhD level). A convenience sample of 608 nurses and nursing students from Belgium and The Netherlands participated to evaluate validity of the multiple-choice test items (item difficulty, discriminating index, quality of the response alternatives), construct validity, internal consistency, and stability of the instrument. The data were collected between February and May 2008. RESULTS: A 26-item instrument was developed, reflecting 6 themes expressing the most relevant aspects of pressure ulcer prevention. The content validity was excellent (CVI=0.78-1.00). Group scores of nurses with a (theoretically expected) high level of expertise were found to be statistically significantly higher than those of participants with (theoretically expected) less expertise (P<0.001). The item difficulty index of the questions ranged from 0.27 to 0.87, while values for item discrimination ranged from 0.29 to 0.65. The quality of the response alternatives was found to be good. The overall internal consistency reliability (Cronbach's alpha) was 0.77. The 1-week test-retest intraclass correlation coefficient (stability) was 0.88. CONCLUSION: The instrument demonstrated acceptable psychometric properties and can be applied in both research and practice for evaluating knowledge about pressure ulcer prevention.
D Beeckman; K Vanderwee; L Demarr?; L Paquay; A Van Hecke; T Defloor
Publication Detail:
Type:  Journal Article; Validation Studies     Date:  2009-09-24
Journal Detail:
Title:  International journal of nursing studies     Volume:  47     ISSN:  1873-491X     ISO Abbreviation:  Int J Nurs Stud     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-03-03     Completed Date:  2010-06-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0400675     Medline TA:  Int J Nurs Stud     Country:  England    
Other Details:
Languages:  eng     Pagination:  399-410     Citation Subset:  IM; N    
Copyright Information:
Copyright 2009 Elsevier Ltd. All rights reserved.
Nursing Science, Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University, B-9000 Ghent, Belgium.
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MeSH Terms
Clinical Competence*
Pressure Ulcer / nursing,  prevention & control*
Prospective Studies
Research Design
Comment In:
Int J Nurs Stud. 2010 Jul;47(7):926-8   [PMID:  20307880 ]

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