RESUMEN
Abstract Background: The ADHD Rating Scale IV (ADHD RS IV) is one of the most commonly used scales in attention deficit hyperactivity disorder (ADHD) assessment. Its psychometric properties have been studied in contexts including Europe and North America, however, in Latin America, there is shortage of empirical evidence about validity or reliability reported by teachers on a scholar context. The aim of the research was to analyze the psychometric properties of the ADHD RS IV based on the behavior of students reported by teachers. Material/methods: Three hundred and forty-five students voluntarily participated in this study (162 men and 183 women), aged between 5 and 15 years (Mage = 10.43, SD = 3.61). As instruments of measurement ADHD RS IV, Perception of Differences Test and Go / No-Go experiment were used. Cronbach's alpha, Pearson correlation and confirmatory factor analysis were applied and analyzed. Results: In the results it was found that internal consistency coefficient of RS IV ADHD is between .93 and .97. There is a significant statistically correlation between the scale and the number of successes points in the Perception of Differences Test (r = -.55, p = < .001) and mistakes to stimuli no-go (r = .34, p = .002). The classic ADHD model of two factors had good indicators of goodness of fit x 2 (101) = 321.40, p < .001; CFI = .96; RMSEA = .08 (.07 to .09) and SRMR = .04. Conclusions: The article is finalized highlighting the ADHD RS IV has adequate psychometric properties in order to be applied in the school context.
Resumen Antecedentes: La ADHD Rating Scale IV (ADHD RS IV) es una de las escalas más utilizadas en la evaluación del trastorno por déficit de atención con hiperactividad (ADHD). Sus propiedades psicométricas se han estudiado en contextos que incluyen Europa y América del Norte, sin embargo, en América Latina, hay escasez de evidencia empírica sobre la validez o confiabilidad reportada por los docentes en un contexto académico. El objetivo de la investigación fue analizar las propiedades psicométricas del ADHD RS IV con base en el comportamiento de los estudiantes reportados por los maestros. Material /Métodos: Trescientos cuarenta y cinco estudiantes participaron voluntariamente en este estudio (162 hombres y 183 mujeres), con edades comprendidas entre 5 y 15 años (Mage = 10.43, SD = 3.61). Como instrumentos de medida ADHD RS IV, se utilizaron la prueba de percepción de diferencias y el experimento Go / No-Go. Alfa de Cronbach, correlación de Pearson y análisis factorial confirmatorio fueron aplicados y analizados. Resultados: En los resultados se encontró que el coeficiente de consistencia interna de RS IV ADHD está entre .93 y .97. Existe una correlación estadística significativa entre la escala y el número de puntos de éxito en la Prueba de Percepción de Diferencias (r = -.55, p = <.001) y los errores a los estímulos no-go (r = .34, p =. 002). El modelo clásico de TDAH de dos factores tenía buenos indicadores de bondad de ajuste x 2 (101) = 321.40, p <.001; CFI = .96; RMSEA = .08 (.07 a .09) y SRMR = .04. Conclusiones: El artículo finaliza destacando que la ADHD RS IV tiene propiedades psicométricas adecuadas para ser aplicado en el contexto escolar.
RESUMEN
Abstract Content validity of the 18-item Investigator-Rated Attention-Deficit Hyperactivity Disorder (ADHD) Rating Scale IV (I-ADHD RS-IV) with adult prompts was investigated using qualitative interviews of US clinicians who had prior experience rating adults with phenylketonuria (PKU) using the I-ADHD RS-IV. Fourteen qualitative interviews were conducted to obtain key symptom experiences of adults with PKU and assessed the relevance, clarity, and administration of the I-ADHD RS-IV. Participants (n = 13, 92.9%) endorsed the inattention symptoms as key experiences by adults with PKU and endorsed the instrument as fit for purpose for adults with PKU. Participants generally reported low frequencies of occurrence for the 9 I-ADHD RS-IV hyperactivity/impulsivity items. Despite some clinicians' concerns for the lack of patient self-awareness, the participants reported no difficulty selecting a rating on these items. This in-depth study of the content validity of the I-ADHD RS-IV provides evidence that this clinician-reported instrument captures the severity of important inattention symptoms in adults with PKU.
RESUMEN
Objective: To evaluate the prevalence of Attention Deficit/Hyperactivity Disorder (ADHD) in the city of Antofagasta. Patients and Methods: Teachers and parents of 640 children (290 boys and 350 girls) between 6 and 11 years, from public, subsidized and private schools were evaluated through the Attention Deficit Hyperactivity Disorder Rating Scale-IV [ADHD-RS IV]. Results: Utilizing the ADHD Scale independently, the prevalence ranged between 5 percent and 15 percent depending on the informant. This number decreased to 2 percent when the criteria were required both at home and school environments. Conclusion: In our population the prevalence of ADHD is highest in boys 6 to 8 years of age, being the combined disorder the most common subtype found in this group.
Objetivo: Describir la prevalencia encontrada del Trastorno por déficit de atención con hiperactividad en la ciudad de Antofagasta. Método: A través de las Escalas Attention Deficit Hiperactivity Disorder Rating Scale-IV [ADHD RS-IV] fueron evaluados apoderados y profesores de 640 niños (290 niños y 350 niñas) entre 6 y 11 años, provenientes de establecimientos educacionales públicos, subvencionados y privados. Resultados: Se encuentran prevalencias que oscilan entre un 5 por ciento a un 15 por ciento dependiendo del informante, las cuales disminuyen a un 2 por ciento considerando criterios cumplidos en dos ambientes. Existen diferencias significativas entre hombres y mujeres, así como entre rangos de edad. Conclusión: La prevalencia estimada de TDAH es mayor en hombres entre 6 a 8 a±os, siendo el subtipo más frecuente el combinado.