Attention Deficit Hyperactivity Disorder (ADHD):

A condition characterized by low attention span, impulsivity, and overactivity. Children with ADHD may experience cognitive, academic, social and physical  problems.

Conduct Disorder:

Persistent antisocial behavior (theft, cheating at games, lying, etc.), not isolated antisocial acts. Children may project toughness, but usually have low self-esteem. Conduct disorders often co-occur with depression, low problem-solving skills, learning disorders, substance abuse, or ADHD. Conduct disorders may be mild, moderate, or severe.

Depression:

A mood disorder which may occur singly, recurrently, or following a manic episode as bipolar disorder. Youth may be sad, overtired, or express hopelessness. Conversely, they may become angry or irritable, get into trouble at school, or abuse alcohol or drugs.

Bipolar Disorder:

Mood disorder, in which excessive elevated (manic) mood is followed by a major depressive episode. Manic moods may last from a few days to a few months; there may be rapid shifts of elevated mood to anger or depression. Children experiencing depressive symptoms may express feelings of worthlessness, guilt, or suicidal thoughts.

Post-Traumatic Stress Disorder:

Follows a psychologically distressing event, such as child abuse, natural disasters, seeing a homicide or other violent or traumatic event. These youth may be detached from others, have trouble sleeping, concentrating, or have various physical symptoms like headaches or stomachaches.

Pervasive Developmental Disorders:

A group of serious conditions(Autism, Rett’s Disorder, Childhood Disintegrative Disorder, Asperger’s Disorder) marked by distortions, deviations, and delays in social and motor skills, language, attention, perception, and reality testing.