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Int. J. Environ. Res. Public Health 2012, 9(3), 1018-1029; doi:10.3390/ijerph9031018
Article

Hypertension Knowledge-Level Scale (HK-LS): A Study on Development, Validity and Reliability

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Received: 4 January 2012 / Revised: 27 February 2012 / Accepted: 13 March 2012 / Published: 22 March 2012
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Abstract

This study was conducted to develop a scale to measure knowledge about hypertension among Turkish adults. The Hypertension Knowledge-Level Scale (HK-LS) was generated based on content, face, and construct validity, internal consistency, test re-test reliability, and discriminative validity procedures. The final scale had 22 items with six sub-dimensions. The scale was applied to 457 individuals aged ≥18 years, and 414 of them were re-evaluated for test-retest reliability. The six sub-dimensions encompassed 60.3% of the total variance. Cronbach alpha coefficients were 0.82 for the entire scale and 0.92, 0.59, 0.67, 0.77, 0.72, and 0.76 for the sub-dimensions of definition, medical treatment, drug compliance, lifestyle, diet, and complications, respectively. The scale ensured internal consistency in reliability and construct validity, as well as stability over time. Significant relationships were found between knowledge score and age, gender, educational level, and history of hypertension of the participants. No correlation was found between knowledge score and working at an income-generating job. The present scale, developed to measure the knowledge level of hypertension among Turkish adults, was found to be valid and reliable.
Keywords: hypertension; knowledge; scale; validity; reliability hypertension; knowledge; scale; validity; reliability
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Baliz Erkoc, S.; Isikli, B.; Metintas, S.; Kalyoncu, C. Hypertension Knowledge-Level Scale (HK-LS): A Study on Development, Validity and Reliability. Int. J. Environ. Res. Public Health 2012, 9, 1018-1029.

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