Is Early Intervention CLINICALLY Effective?
There is a key question that every parent,
professional, and politician wants answered: “Is Early Intervention Clinically
Effective?” The experts have spoken loudly on this question. The World Bank
has published a book entitled “Early Child Development: Investing in the
Future”. In Chapter I (“The Case for Early Intervention”)
the authors state, “Thirty years of research has shown that such programs
can improve primary and even secondary school performance, increase children’s
prospects for higher productivity, and reduce the probability that they will
become burdens on public health and social service budgets.” There is also
research on the clinical effectiveness of Early Intervention with specific
disorders. For example, a report on autism by the U.S. Surgeon General states:
“Intensive, sustained special education programs and behavior therapy early
in life can increase the ability of a child with autism to acquire language and
ability to learn…Thirty years of research has demonstrated the efficacy of
applied behavioral methods.” After screening 300 articles and selecting
the 49 studies with the highest scientific standards, the Clinical
Practice Guidelines for Autism/Pervasive Developmental Disorders
published in 1999 by the New York State Department of Health states: “It is
important to identify children with autism and begin appropriate interventions
as soon as possible since such early interventions may help speed the child’s
overall development, reduce inappropriate behaviors, and lead to better
long-term functional outcomes.” (page IV-4). After screening 372 articles,
and selecting the 40 studies with the highest scientific standards, the Clinical
Practice Guidelines for Communication Disorders published in 1999 by
the New York State Department of Health recommends: “It is important to
identify children with communication disorders and begin appropriate
interventions as soon as possible. Early intervention may help speed the
child’s overall language development and lead to better long-term functional
outcomes.” (page IV-6). In Michael Guralnick’s 1997 seminal work, “The
Effectiveness of Early Intervention,” the clinical effectiveness of
Early Intervention is meticulously documented with peer-reviewed research for
Down Syndrome, Autism, Cerebral Palsy, Communication Disorders, Conduct
Problems, Hearing Loss, Visual Impairments, Mental Retardation, premature/low
birth-weight children, for children who were abused, and for children with
prenatal exposure to alcohol and drugs. Of course, different effect sizes are
noted across the various disorders studied, but, overall Early Intervention
services are consistently found to have positive clinical effects.