Barkley's Model of ADHD Is Well Suited to Explaining How

Barkley's Model of ADHD is well suited to explaining how children with the impulsive‐ hyperactive type of ADHD have difficulty engaging n goal‐directed tasks. Respond to the following questions about that model:
a) The main feature of this model suggests why children with ADHD have problems in Behavioral Inhibition, which is best described as
b) Name each of the four executive functions that are represented in this model and how each helps to reach the goal.
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c) The last stage in the model is obtained through goal persistence. How is attention for goal‐
directed persistence different from sustained attention for contingency‐shaped attention? Give an example of each.