ADHD and Conditions That Mimic ADHD

It is usually fairly easy for classroom teachers toDissemination Center for Children with Disabilities
distinguish the students who are on-task from(April, 2002):
those who are not. Those on-task students tendOppositional Defiant Disorder (ODD) - A pattern
to be those who are using their time productivelyof negative, hostile, and defiant behavior.
towards completing assigned work. TheseSymptoms include frequent loss of temper,
students tend to listen closely to teacherarguing (especially with adults), refusal to obey
instructions so they may be able to accuratelyrules, intentionally annoying others, blaming others.
complete the assignment. Generally, on-taskThe person is angry, resentful, possibly spiteful,
students work quietly and purposely during theand touchy. (Many of these symptoms disappear
allotted independent seat work time. However,with AD/HD treatments.)
there are usually a small number of students inConduct Disorder (CD) - A pattern of behavior
the same classroom who tend to be off-task athat persistently violates the basic rights of others
majority of the time. These students may beor society's rules. Behaviors may include
quietly avoiding work completion, or they may beaggression toward people and animals, destruction
actively pursuing other interests in a manner thatof property, deceitfulness or theft, or serious rule
is disruptive and noticeable. Regardless of theviolations.
nature of off-task behavior, these students areAnxiety - Excessive worry that occurs frequently
showing some amount of inattention and underand is difficult to control. Symptoms include feeling
performance in the classroom. Although a few ofrestless or on edge, easily fatigued, difficulty
these off-task students may have a genuineconcentrating, irritability, muscle tension, and sleep
impairment observed as ADHD, many otherdisturbances.
students may struggle with inattention due toDepression - A condition marked by trouble
other reasons. These latter students showconcentrating, sleeping, and feelings of dejection
ADHD-like symptom as a result of alternativeand guilt. There are many types of depression.
conditions which can effectively interfere withWith AD/HD you might commonly see dysthymia,
classroom learning.which consists of a depressed mood for many
The most common disruptor to learning in thedays, over or under eating, sleeping too much or
classroom is low motivation, weak work-studytoo little, low energy, low self-esteem, poor
skills, poor organization, and inefficiency of timeconcentration, and feeling hopeless. Other forms
usage. These students tend to be average to lowof depression may also be present.
academic performers who will consistently haveLearning Disabilities - Problems with reading,
difficulty producing a volume of high quality work.writing, or mathematics. When given standardized
Fortunately, their work efforts will improve withtests, the student's ability or intelligence is
additional monitoring and reinforcement offered bysubstantially higher than his or her achievement.
the classroom teacher.Underachievement is generally considered
Aside from these less efficient and underage-inappropriate. [Note: Children with AD/HD
motivated students, there are usually a smallerfrequently have problems with reading fluency and
number of students who are purposely avoidingmathematical calculations. AD/HD learning
work completion. The inattention and off-taskproblems have to do with attention, memory and
behavior of these students easily mimics the coreexecutive function difficulties rather than dyslexia,
symptoms of ADHD. These students are oftendysgraphia, or dyscalculia, which are learning
targeted for ADHD evaluations due their underdisabilities.]
performance in the classroom. There are numberFowler goes on to describe ADHD as still the
of alternative conditions that can demonstratemost commonly diagnosed behavior disorder of
with ADHD like symptoms. These include mentalchildhood. The core symptoms must reflect
health disruptions resulting from divorce, childinattention, hyperactivity, and impulsivity that
abuse, death and loss, family moves, parentconsistently disrupt one or more life areas and
unavailability due to occupational travel, suddenare developmentally inappropriate when compared
traumatic experience, or even dysfunctionalto the chronological age of the child. To
parenting. Although these disruptors generally tendsuccessfully evaluate, a professional must
to be temporary in a child's life, they can stillexamine the number of symptoms present, the
introduce high amounts of stress that can easilyseverity of symptoms, and the extent of the
disrupt attention and learning in the classroom.disruption evident in two or more critical life areas.
In addition to these emotional disruptions, thereIn essence, the professional diagnostician must
are other mental health conditions that can occurattempt a comprehensive assessment that
in addition to ADHD, or perhaps be mistaken forevaluates the child globally. In so doing, the
ADHD. These conditions are outlined by Maryalternative diagnostic conditions can be
Fowler in a publication of the Nationaldifferentiated from a true presentation of ADHD.