Purpose of the Scale

The purpose of the [IDAA-22] scale is the preliminary assessment of signs of attention deficit and hyperactivity in the adult population.

Scale Analysis

The [IDAA-22] is a self-report scale developed by Rösler and colleagues in 2004 and consists of 22 questions. The average time required to complete the questionnaire is approximately 5 minutes. The questionnaire is administered to adult individuals regardless of gender, while its use with minors is not recommended.

Calibration and Statistical Analysis

The 22 questions of the [IDAA-22] are scored on a four-point Likert scale, where 0 = never, 1 = rarely, 2 = often, and 3 = always, with the maximum possible score being 40. In this scale, respondents are asked to indicate the degree to which each statement applies to them. It is important to note that in addition to the total score obtained, three specific factors/symptoms of the disorder are evaluated: inattention, hyperactivity, and impulsivity. Finally, it is established that when the total score exceeds the threshold defined by experts, further investigation is required through a clinical interview and detailed history-taking to determine whether the individual should indeed receive an ADHD diagnosis.

Reliability and Validity

The [IDAA-22] has been translated into Greek by Sofianopoulou, Leontiadou, Angeli, and Kalantzi-Azizi in 2007 using the method of forward and backward translation. Additionally, the internal reliability coefficient of the questionnaire is α = 0.87, while separately for the factors: inattention α = 0.84, hyperactivity α = 0.82, and impulsivity α = 0.75.

References

Retz-Junginger, P., Retz, W., & Rösler, M. (2020). 22 Fragebögen und Beurteilungsskalen im Erwachsenenalter. Handbuch ADHS: Grundlagen, Klinik, Therapie und Verlauf der Aufmerksamkeitsdefizit-Hyperaktivitätsstörung, 271.
Rösler, M., Retz, W., Retz-Junginger, P., Thome, J., Supprian, T., Nissen, T., … & Trott, G. E. (2004). Instruments for the diagnosis of attention deficit/hyperactivity disorder (ADHD) in adulthood. Der Nervenarzt, 75(9), 888–895.
Sofianopoulou, A., & Kalantzi-Azizi, A. (2008). Attention Deficit Disorder (ADD) Symptoms, Temperament Traits and Study Abilities Among Students. Copyright© 2008 ELLINIKA GRAMMATA–FEDORA PSYCHE, 161.