It is a standardized scale that is advantaged with a high degree of validity and reliability. It was prepared according to Diagnostic and Statistical Manual of Mental disorders: Fifth Edition (DSM -5). It is composed of two main parts:attention deficit and hyperactivity/Impulsivity upon which probability of suffering from Attention deficit hyperactivity disorderis determined. One of the parents or the caregiver would answer the scale questions and also the child's teacher can answer a copy of this test in order to observe the child's behavior in different situations.