| Term 
 | Definition 
 
        | typically by the age of 3 years and MUST occur by age 7 to meet DSM-IV-TR |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | lifelong for both sexes, but hyperactivity is much less prominent |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | greater than or equal to 6 symptoms which MUST be present for 6 months |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | difficulty sustaining and paying close attention, does not listen, no follow through, easily distracted, loses things |  | 
        |  | 
        
        | Term 
 
        | hyperactivity and impuslivity |  | Definition 
 
        | fidgets, leaves seat when remaining seated is expected, runs about, climbs and difficulty playing quietly |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | have an impact on medication selection |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | providing rewards or privileges contingent on the child's performance |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | removing access to positive reinforcement contingent on performance of unwanted or problem behavior |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | withdrawing rewards or privileges contingent on the performance of unwanted or problem behavior |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | combining positive reinforcement and response-cost |  | 
        |  | 
        
        | Term 
 
        | selective NE reuptake inhibitor |  | Definition 
 | 
        |  |