Turkish validity and reliability study of the adolescent asthma self-efficacy questionnaire

Purpose: The purpose of this study was to determine the validity and reliability of the Adolescent Asthma Self -Efficacy Questionnaire for the Turkish population. Design and method: This study involved 198 adolescents aged 12 -18 who had been diagnosed with asthma. Data were collected using the Sociodemographic Information Questionnaire and the Turkish version of the Adolescent Asthma Self -Efficacy Questionnaire. The validity of the scale was evaluated using the content validity index, explanatory and confirmatory factor analyses, Cronbach's alpha reliability score, split -half method, item -total score correlation, and test -retest. Results: The Turkish version of the Adolescent Asthma Self -Efficacy Questionnaire has a total explained variance of 63%. Factor loadings were found to be higher than 0.40 in both explanatory and confirmatory factor analyses. The test -retest reliability coefficient is 0.91, and the total Cronbach's alpha value of the scale is 0.93, with all subscales having a Cronbach's alpha value >0.84. The model fit indices of the scale were found to be at an acceptable level. Conclusion: The Adolescent Asthma Self -Efficacy Questionnaire is a valid and reliable measurement tool for the Turkish population. Practice implications: The AASEQ can be a useful tool for healthcare professionals in the assessment of self -efficacy in adolescents who have had a diagnosis of asthma. (c) 2024 Elsevier Inc. All rights reserved.