In the past 40 years much of interest to educators, physicians, and psychol
ogists has been learned about temperament differences among children, but t
his information may not yet have been fully incorporated into the thinking
and practice of school psychology. Children's temperament can arouse concer
n in teachers as well as parents in three main situations: (a) when the chi
ld's temperament is challenging for the caregivers or teachers but the chil
d's adjustment is not dysfunctional in social relationships or school perfo
rmance as with shyness; (b) when the child's temperament becomes reinforced
by becoming incorporated into the child's coping strategies as when the te
mperament trait of initial withdrawal enlarges to a general pattern of avoi
dance for dealing with all stressors, thereby increasing the risk of interf
ering with adjustment; and (c) when the child's temperament contributes to
a "poor fit" with the environment that leads to a behavioral or other funct
ional problem as when inappropriately handled low adaptability produces a r
eaction pattern of oppositional or aggressive behavior. The recent great in
crease in the diagnosis of attentiondeficit/hyperactivity disorder (ADHD) m
ay be related to an insufficient appreciation of the existence and importan
ce of normal temperament variations. School psychologists may be helped in
their work by more information and research on children's temperament, more
use of the concept when making assessments of school problems, and conside
ration of the "goodness-of-fit' in planning interventions.