What is the Cost-effectiveness of the Auditory-Verbal Approach?

     

 

Ellen A. Rhoades, Ed.S., Cert. AVT, CED

When I served as executive director of two different auditory-verbal nonprofit centers from 1977 through 1999, I took each of the center's total annual budgets and then divided it by the number of children we served for each of those years. The resultant figure was how I arrived at the average cost to provide auditory-verbal intervention services for a child. During the 1980s and 1990s, those costs were fairly consistent; that is, the cost per child ranged from $4,000 to $5,000 at that time. Moreover, it should be noted that I expected each child to be professionally released from auditory-verbal intervention services when they attained morpho-syntactical adult-like language which occurs by four years of age for normally hearing children. This means each child should achieve a four-year-level of oral language skills as demonstrated on formal norm-referenced diagnostic tests of language (e.g., SICD, OWLS, CASL) that have been standardized on normally hearing children. Therefore, I am able to determine that the typical child will be professionally released after receiving approximately four years of effective auditory-verbal intervention services. Given this information, I took the $5,000 cost per child and multiplied that by the average four years of intervention to arrive at the $20,000 figure that it cost to “create” a functionally hearing child who is ready for assimilation into the mainstream of school and community.

However, just as we must recognize that there is great variability from child to child, it must be similarly noted that this "cost per child" will vary from program to program, depending on the program’s expenses and extent of services rendered. Moreover, the cost may be dramatically different when computed by auditory-verbal clinicians in private practice, in hospital settings, or within public school settings. For example, one private clinician’s fees may be $200 per session, whereas another’s may be $75 per session. Finally, it should be noted that there is often much variability in the quality of auditory-verbal services provided by professionals, regardless of whether or not the auditory-verbal clinicians are certified.

My research findings (Rhoades & Chisolm, 2001; more data is forthcoming) with the children that were served under my administration demonstrate the following outcomes:
(1) The typical child with significant hearing loss can progress in their language skills at an average rate of progress equivalent to the growth rate of normally hearing children.
(2) Some children demonstrated rates of language growth that surpass the typical 100% rate of growth; these children “caught up” with normally hearing peers. In other words, these auditory-verbal children closed the gap between their Language Age and their Chronological Age, regardless of whether they were hearing aid or cochlear implant users.
(3) Children who are prelingually deaf can attain communicative competence in their parent’s native spoken language, which in the case of these studies, is English.
(4) The average chronological age at initiation of high-quality auditory-verbal intervention was 44 months.
The children in this study were all using effective hearing prostheses, either hearing aids or cochlear implants. For additional information on these findings, one can also go to this page on my web site: http://www.auditoryverbaltraining.com/resources.htm

In order to compare the $20,000 cost per child to how other programs serve children with hearing loss, one must attempt to equalize the situation and this can prove difficult. For example, because my “cost per child” was based on budget devoted exclusively to serving children, I then located another program also devoted exclusively to serving similar children, i.e., a local residential school for children with hearing loss. I was able to determine the annual budget for that school as well as the number of children they served. At that time, the annual cost was then demonstrated to be $45,000 to $50,000. I also learned from annual demographic studies provided by Gallaudet Research Institute that the average deaf child remains in self-contained classroom for an average of ten years. Therefore, $50,000 X 10 = $500,000. It was at this point that I could compare my $20,000 figure to the half-million dollar cost for educating a child who is deaf, irrespective of pedagogy employed within the residential school.

Unfortunately, there is nothing published other than this document on www.AuditoryVerbalTraining.com because this figure will vary from situation to situation and from year to year, given our economic times and budgets. However, regardless of intervention setting, there is one key point to keep in mind when it comes to cost-effectiveness: Assuming an auditory-verbal therapist provides one session for each child per week, that therapist can serve twenty (20) children over the course of any given year. How can this be the same cost as a teacher of the deaf who provides services for a classroom of four to eight children over the period of a year?

Reference:
Rhoades, E. A. & Chisolm, T. H. (2001). Global language progress with an auditory-verbal approach for children who are deaf or hard of hearing. The Volta Review, 102 (1), 5-24.

SICD: Sequenced Inventory of Communication Development
OWLS: Oral and Written Language Scales
CASL: Comprehensive Assessment of Spoken Language
 

 


Ellen A. Rhoades, Ed.S., Cert. AVT, CED
 954.370.7708 (voice)
561.504.4349 (cell)
This Web site was updated on December 27, 2007
Copyright 2002-2006 - Ellen A. Rhoades. All rights reserved.
 
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