Development and psychometric evaluation of the parent-administered metered-dose inhaler skills scale for children with asthma (PAMDIS)


KOCAASLAN MUTLU E. N., ÇETİNTAŞ İ., Cumur Başkır E., AKGÜN KOSTAK M.

Journal of Pediatric Nursing, cilt.88, ss.169-176, 2026 (SCI-Expanded, SSCI, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 88
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1016/j.pedn.2026.02.021
  • Dergi Adı: Journal of Pediatric Nursing
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus, CINAHL, MEDLINE
  • Sayfa Sayıları: ss.169-176
  • Anahtar Kelimeler: Asthma, Children, Metered-dose inhaler, Parents, Reliability, Scale development, Validity
  • Trakya Üniversitesi Adresli: Evet

Özet

Aim This study aimed to develop the Parent-Administered Metered-Dose Inhaler Skills Scale for Children with Asthma (PAMDIS) and evaluate its validity and reliability. The scale aims to address this gap in pediatric asthma care by providing a standardized tool for evaluating parental inhaler application skills. Study design The study was conducted with 182 parents of children aged 4–9 years diagnosed with asthma who attended a pediatric allergy and immunology outpatient clinic. Item generation was based on current asthma management guidelines and relevant literature. Content validity was confirmed by expert review, while construct validity was examined using exploratory and confirmatory factor analyses. Reliability was evaluated through internal consistency and item–total correlations. Results After item reduction, exploratory factor analysis revealed a 14-item, three-factor structure explaining 60.78% of the total variance, with factor loadings ranging from 0.47 to 0.98. Confirmatory factor analysis supported the three-factor model, with good to acceptable fit indices (χ2/df = 1.37, CFI = 0.99, TLI = 0.99, RMSEA = 0.045, SRMR = 0.078). The overall scale demonstrated high internal consistency (Cronbach's α = 0.915), and item–total correlation coefficients were ranged from 0.543 to 0.823. Conclusion PAMDIS is a valid and reliable tool for assessing parental MDI administration skills in children aged 4–9 years. Practice implications Pediatric nurses can use PAMDIS to detect parental inhaler technique errors, tailor individualized education, and enhance asthma management outcomes. The scale fills a practical gap by offering a standardized method to evaluate and support parents' competence in inhaler administration.