• J Adv Nurs · Dec 2011

    Development and psychometric evaluation of an instrument to assess venous leg ulcer lifestyle knowledge among nurses.

    • Ann Van Hecke, Caroline Goeman, Dimitri Beeckman, Maud Heinen, and Tom Defloor.
    • Faculty of Medicine and Health Sciences, Department of Public Health-Nursing Science, Ghent University, Belgium. ann.vanhecke@ugent.be
    • J Adv Nurs. 2011 Dec 1; 67 (12): 2574-85.

    AimDevelopment and psychometric testing of an instrument to assess venous leg ulcer lifestyle knowledge.BackgroundNurses often lack knowledge to provide adequate leg ulcer advice. No valid and reliable instruments are available to assess knowledge on venous leg ulcer advice among nurses.MethodsThe instrument was developed based on a literature review and patient cases. Content validity was evaluated in a Delphi procedure by nine leg ulcer experts. Item-analysis, construct validity and stability were assessed. A sample of 350 nurses and student nurses participated. Data collection took place between February and April 2009.ResultsThe instrument included four topics: (1) Compression therapy, (2) Physical activity/leg exercises, (3) Leg elevation and (4) Pain management. Multiple-choice questions were developed to assess factual knowledge. Patient cases were developed to assess more complex cognitive skills. Content validity was established. The quality of the response alternatives varied between 0.01 and 0.68. The difficulty index for questions evaluating factual knowledge ranged from 0.12 to 0.78. Patient cases' questions had a difficulty index between 0.07 and 0.60. The score of participants with (theoretically expected) more expertise was significantly higher than the score of participants with (theoretically expected) less expertise. The intraclass correlation coefficients ranged between 0.71 and 0.77. Eleven questions had moderate kappa-values (0.41-0.60), and in eight questions, there was fair agreement (0.30-0.40).ConclusionAn instrument with an acceptable content validity and construct validity was developed. The instrument can be applied in nursing education, nursing practice and nursing research to evaluate venous leg ulcer advice knowledge.© 2011 The Authors. Journal of Advanced Nursing © 2011 Blackwell Publishing Ltd.

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