Validity and Reliability of the Cardiovascular Disease Knowledge, Attitude, and Practice Questionnaire for the...

Cardiovascular disease risk factor knowledge, attitudes, and practices are believed to be prerequisites for adopting healthy behaviors.

In this cross-sectional study, we aimed to psychometrically test the adapted Cardiovascular Disease Knowledge, Attitudes, and Practices Questionnaire for the Turkish population.

Exploratory and confirmatory factor analyses were performed on data from 500 Turkish individuals by splitting the sample into 2 groups for validity and reliability assessment. The reliability of the Turkish population adaptation of the scale was evaluated using Cronbach α coefficient, item-total correlation, and the Guttman split-half coefficient, and its structural validity was determined using exploratory factor analysis and confirmatory factor analysis.

The results of the Kaiser-Meyer-Olkin test (0.905) and Bartlett sphericity test statistics (χ 2 = 4866.787, df = 406, P < .001) provided evidence that the data were suitable for factor analysis. The comparative fit index was 0.91, the goodness-of-fit index was 0.83, the root-mean-square error of approximation was 0.053, the normed fit index was 0.85, and the incremental fit index was 0.91, indicating that the model had acceptable fit. Factor analysis revealed that the scale had a 4-factor solution compatible with the original questionnaire.

The Cardiovascular Disease Knowledge, Attitudes, and Practices Questionnaire demonstrated acceptable reliability and validity and can be used in Turkish-language studies. Future studies are recommended to collect additional evidence of its validity as well as comparative values for different cultural groups to increase the utility of the instrument.