The corrected item-total coefficient correlations varied from 0.48 to 0.69.Īll these results show the Perceived Control of Asthma Questionnaire (PCAQ) is a valid and reliable scale tool that can be used for Turkish adults with asthma. The Cronbach alpha internal consistency coefficient was 0.85. Additionally, factor loads were ranked from 0.46 to 0.79. The results of confirmatory factor analysis calculated the goodness-of-fit values for the scale as χ2/sd = 1.507, RMSEA = 0.058, GFI = 0.928, IFI = 0.958, and NFI = 0.886.
Item analysis, corrected item-total point correlations and mean item points for lower-upper 27% groups were investigated.Īccording to exploratory factor analysis results, the Turkish form of the PCAQ appeared to explain 53.093% of total variance related to the feature measured. The validity of the scale was investigated with exploratory factor analysis, confirmatory factor analysis and criterion validity, while the reliability of the scale was investigated with the Cronbach alpha coefficient and test-repeat test method. In this study, the aim was to test the validity and reliability of the Perceived Control of Asthma Questionnaire (PCAQ) among adults with asthma and to investigate the psychometric features.Ī total of 152 people aged 18 and over, who were diagnosed with asthma at least 1 year ago by a pulmonologist and volunteered to participate in the study were included in the study. however, there is no measurement tool that evaluates the patient's perception that affects asthma management. The prevalence of asthma is high in Turkish people.
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