Development of a Short Version of the ADHD Rating Scale-IV.es (sADHD-RS-IV.es)

• Published in: Journal of attention disorders 2024-03, Vol.28 (5), p.600-607
• Main Authors: Vallejo-Valdivielso, María, de Castro-Manglano, Pilar, Vidal-Adroher, Cristina, Díez-Suárez, Azucena, Soutullo, Cesar A.
• Format: Article
• Language: English
• ISSN: 1087-0547; 1557-1246
• DOI: 10.1177/10870547241232314

Objective: To develop a short version of the Spanish 18-item ADHD-Rating Scale IV.es (sADHD-RS-IV.es) to be used as a potential screening tool in pediatric population. Methods: We recruited 652 subjects, ages 6 to 18 (mean ± SD = 11.14 ± 3.27): 518 patients with ADHD (per DSM-IV criteria); and 134 healthy controls. We performed a stepwise logistic regression to select the best subset of ADHD-RS-IV.es items to create a short-form. We calculated internal consistency reliability (Cronbach’s and ordinal alphas) and diagnostic accuracy using receiver operating characteristic (ROC) curve. Results: Six items were found to enter the stepwise analysis significantly. Internal consistency was high (Cronbach’s alpha = 0.86; ordinal alpha = 0.90) and offered a good concordance with clinician diagnosis and a high discriminatory power (AUC = 0.98) with an optimal cut-off at a score of six points. Conclusions: This shorter questionnaire (six items) was able to discriminate ADHD cases from healthy controls.