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  • Title: Development and validation of a low-literacy Chronic Obstructive Pulmonary Disease knowledge Questionnaire (COPD-Q).
    Author: Maples P, Franks A, Ray S, Stevens AB, Wallace LS.
    Journal: Patient Educ Couns; 2010 Oct; 81(1):19-22. PubMed ID: 20044232.
    Abstract:
    OBJECTIVE: The objective of this study was to develop a content valid, understandable, readable, and reliable Chronic Obstructive Pulmonary Disease knowledge Questionnaire (COPD-Q). METHODS: Twenty-one questions were generated as potential items to include in the COPD-Q. Twenty-two content experts provided both qualitative and quantitative assessments of two COPD-Q drafts. Ten patient volunteers completed a field test to assess clarity of individual COPD-Q items. An additional 24 patient volunteers completed a pilot test to determine internal consistency and test-retest reliability of the COPD-Q. The Flesch Reading Ease (FRE) was used to assess reading grade level of the COPD-Q. RESULTS: Thirteen items were rated as "essential" (content validity ratio= p <0.05) by content experts and composed the final COPD-Q. Internal consistency, using Cronbach's alpha, was 0.72. Test-retest reliability, using intraclass correlation coefficient, was 0.90. The FRE score of the COPD-Q was 74.7 (equivalent to a 5th grade reading level). CONCLUSION: The COPD-Q is a valid, readable and reliable knowledge assessment instrument for assessing COPD knowledge in patients who may have low health literacy skills. PRACTICE IMPLICATIONS: Health care providers can use the COPD-Q to tailor counseling efforts according to individual patient needs, and to assess the effectiveness of their educational interventions.
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