Calvin is an adventurous, mischievous six-year-old who daydreams his way into school detentions and punishments. When teachers try to put him down, Calvin slips in the perfect witty remark to display his true high IQ. Calvin does not have much of a filter between his brain and his mouth, is a little too intelligent for his age, lacks restraint, and doesn't have the experience to know the things that people shouldn't do. He may be impulsive and unfocused, but he has unparalleled creativity and imagination. Calvin's favorite activity is adventuring with his imaginary tiger friend, Hobbes. Calvin's father is overly concerned with "character building" activities, either in the things he makes Calvin do or in the eccentricities of his own lifestyle. Calvin's mother is concerned about his declining performance in school and wants to help him. She takes Calvin to a pediatrician who diagnoses him with ADHD. Explain how the cognitive approach to psychology would explain Calvin's behavior.