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© Borgis - Postępy Nauk Medycznych 1/2013, s. 45-50
*Monika Suchowierska1, Gary Novak2
Nauka i pseudonauka w terapii autyzmu
Science and pseudoscience in the treatment of autism
1Department of Psychology, University of Social Sciences and Humanities, Warszawa, Polska
Head of Department: Ewa Trzebińska, PhD
2Department of Psychology, California State University Stanislaus, USA
Head of Department: William Potter, PhD
Pojęcia, takie jak „metody oparte na dowodach” lub „empirycznie udowodnione metody” odnoszą się do ważnego aspektu pracy klinicznej – mówią one o znaczeniu nauki w ocenianiu efektywności danego oddziaływania. Niestety, jeśli chodzi o terapię zaburzeń rozwoju, to często niesprawdzone, lub wręcz szarlatańskie, techniki są wykorzystywane do pracy z dziećmi. W obecnym artykule omówiono założenia metody naukowej i skontrastowano ją z pseudonauką, wymieniono powody, dla których rodzice dzieci z autyzmem skłaniają się ku eksperymentalnym oddziaływaniom, streszczono wyniki najnowszego raportu dotyczącego praktyki klinicznej opracowanego przez Narodowe Centrum Autyzmu w USA oraz zaproponowano kilka wytycznych dla profesjonalistów mogących mieć do czynienia z rodzicami dzieci o zaburzonym rozwoju.
Terms such as “evidence-based practice” or “best practices” reflect a very important aspect of clinical work, as they point to science as means for evaluating treatment effectiveness. Unfortunately, in the area of developmental disabilities dubious and pseudoscientific interventions are all too prevailing. In the present article, we describe premises of the scientific method and contrast it with pseudoscience, list the reasons for popularity of unsubstantiated claims in autism treatment, summarize the results of a recent report on practice guidelines prepared by the National Autism Center, and offer recommendations for practitioners who may come in contact with parents of children with developmental disabilities.

Despite the fact that terms such as “evidence-based practice”, “empirically supported treatments”, and “best practices” have become ubiquitous in education as well as other human services disciplines their definitions are not generally agreed upon, and worse, the principles are frequently not applied (1). Whatever the name that is used, the requirement for scientific knowledge to function as a filter for recommendations regarding treatment should be a fundamental principle guiding clinical work. Science has become the dominant judge of value in many disciplines, but in psychology interventions based on scientific evidence are often not sought by consumers, and – even worse – not endorsed by service providers. Dubious interventions and pseudo treatments are especially popular in the area of developmental disabilities (2). In the following paragraphs, we will 1) describe the scientific and pseudoscientific approach, 2) list the reasons for the proliferation of unsubstantiated claims in autism treatment, 3) summarize the results of the latest report on educational interventions for children with autism prepared by the National Autism Center, and 4) offer guidelines for clinicians regarding their own practice treating autism.
Science is virtually the only means by which interested individuals can test and evaluate the effectiveness or any proposed intervention (3). The premises of the scientific method are few and straightforward. They include (but are not limited to) 1) conducting quantitative and direct measurements of observable events, 2) testing of verifiable hypotheses, 3) using analytic means to establish relations between events, 4) relying on data to draw conclusions, 5) insisting on replication, 6) publishing of results in peer reviewed journals, and 7) self-correcting their work based on the above (4). Through the scientific process, assertions are confirmed or disconfirmed resulting in an accumulated body of knowledge and technology. Our understanding of phenomena under study is constantly changing as new facts come in from additional research. Despite the fact, that the scientific method has brought many contributions to society, it is often distrusted and disdained (5). The reasons are related to the fact that science does not offer “quick fixes” – the accumulation of evidence is an arduous and slow process. The methods of conducting experiments and analyzing results are not well understood by lay people. Experiments sometimes do not conform to conventional wisdom and common sense and at times seem to defy logic. Moreover, since scientific inquiry is painstaking, gathering data piece-by-piece may appear to be a self-serving endeavor, detached from real-world problems. Finally, science does not offer “good” or “bad” information with unequivocal conclusions – facts are facts, they should have neutral value. This is difficult to embrace by audiences who are hoping for a much-wanted answer, simple, and unambiguous. These characteristics of science are apparent in the scientific findings on climate change, where despite an accumulation of evidence based on the preponderance of careful scientific research, politicians and other non-scientists choose to ignore the findings.
In contrast to science, pseudoscience has many compelling features. They include 1) portraying their interventions as extraordinarily effective with little or no risk associated with their use, 2) basing claims on anecdotes, case studies, surveys, and other non-experimental methods, 3) using methods of inquiry that include uncontrolled, descriptive studies with qualitative data, 4) disseminating results directly to consumers via Internet, mass-media, brochures, reports in self-published books and journals and without peer-review, 5) promoting interventions through endorsements by individuals with apparent credibility or by celebrities (4, 6). Pseudoscience is, unfortunately, very wide-spread in the area of human services. It is also a big business for providers of the pseudoscience. Because of their often desperate need for help for their children, the population of parents of children with autism is especially vulnerable to interventions touted as “cures” or “breakthroughs” (7). Because it has attracted so many treatments of dubious merit, autism is called “a late 20th century fad magnet” by Metz, Mulick and Butter (8). What may be some reasons for such desperation and gullibility of parents of autistic children?
First, the nature of autism makes it a fertile ground for pseudoscience. Despite the fact that this disability was described 70 years ago by Kanner (9), it is still rather unknown and perplexing (10). Autism is treatable, but incurable (11). Thus, parents who are told that their child has a life-long disability, that is quite severe and puzzling reach out for everything and anything that may help. Additionally, parents of autistic children experience much more stress than parents of children with other disabilities (12) and this disorder often has far-reaching adverse effects on the whole family, which motivates parents to find anything that will remedy this situation. Further, since autism is not distinguished by any physical abnormalities, children with this disorder do not look disabled. They also act typical in many instances and show, in some areas, exceptional abilities (13). It is easy, thus, to believe that the child is “almost normal” and will reveal himself or herself with some sort of special individual or technique. Maurice (14) points out the myth of “hidden inner child.” That is the myth that there is a normal child hidden under the autism who may be awakened if only the right conditions happen. This and other misconceptions of autism encourage parents to undertake treatments that offer quick cures. Heterogeneity of the population of children with autism is also one reason for popularity of nonscientific therapies. Because of the inexact and ever-evolving diagnostic criteria for autism, children with autism exhibit a variety of different symptoms and, as individuals, they also are likely to be subjected to at least several therapies (15), in a way as to make it impossible to determine what the cause of the change is. If there is a testimonial supporting one therapy stating that child X advanced, parent of child Y may also want to subject his child to the same treatment that child X received, even though it is not known whether this treatment had anything to do with the changes in that one child. There are also additional reasons, not particular to autism, for the popularity of nonscientific therapies but they certainly also affect the field of developmental disabilities (16). They include the following: the incomplete effectiveness of available therapies, the best available treatment is onerous for clients, alternative treatments are supported by ideology, the treatment is promoted by proprietary professional group, and the treatment is recommended by authority or chosen on the grounds of tenacity.
A good measure of the success parents have in their child’s improvement is choosing an appropriate treatment. However, how to choose an effective evidence-based practice is not easy for most parents. It is not feasible to expect most of the parents to be able to evaluate the strength of research evidence on their own. A much better way is to inform consumers about the current status of practice guidelines for autism intervention. Such guidelines are established according to recommendations of teams of experts based on criteria for “empirically supported therapies” (EST). In 1995, a Division 12 (Clinical Psychology) Task Force on Promotion and Dissemination of Psychological Procedures and the American Psychological Association (APA) Task Force on Psychological Intervention Guidelines created three categories to describe degrees of evidence: Well-established Treatments, Probably Efficacious Treatments, and Experimental Treatments to describe the degree of evidence we have on the effectiveness of treatments. The information below comes from Chambless and Ollendick (17).
Category I: Well-established treatments
At least two good between-group design experiments must demonstrate efficacy in one or more of the following ways:
– Superiority to pill or psychotherapy placebo or to other treatments,
– Equivalence to already established treatment with adequate sample sizes.
A large series of single-case design experiments must demonstrate efficacy with both of the following:
– Use of good experimental design,
– Comparison of intervention to another treatment.
– Experiments must be conducted with treatment manuals or equivalent clear description of treatment,
– Characteristics of samples must be specified,
– Effects must be demonstrated by at least two different investigators or teams,
Category II: Probably efficacious treatments
Two experiments must show that the treatment is superior to a waiting-list control group.
One or more experiments must meet criteria Ia or Ib, III, and IV for well-established treatments (Category I), but the criterion 5 is not met.
A small series of single-case design experiments must meet criteria II, III, and IV for well-established treatments.
Category III: Experimental treatments
Treatment not yet tested in trials meeting task force methodology criteria.
Using the above-mentioned hierarchy of evidence method to make recommendations for interventions with strong scientific support must be part of professional practice guidelines. The ultimate goals is to set higher standards for care and to make better use of research findings to benefit consumers. The methodology to develop practice guidelines has been applied to autism only since the late 1990s. The first three examples of reviewing a variety of treatments for children with autism were: the New York State Department of Health Early Intervention Clinical Practice Guidelines (18), the Report of the Maine Administrators of Services for Children with Disabilities Autism Task Force (19), and the Recommendations of the Committee on Educational Interventions for Children with Autism of the National Research Council (20). Although these reports represented a very important step forward for evidence-based practice in autism treatment, their utility is limited due to 1) insufficient transparency of the process of guidelines’ creation, 2) incomplete comprehensiveness of reviewed studies, and 3) at this point in time – simply being out-of-date (7). Thus, we will describe in detail the latest effort to establish evidence-based practice guidelines dedicated to parents of individuals with autism and professionals working in the field of developmental disabilities – the National Standards Project undertaken by the National Autism Center. The goals of the project were four-fold: 1) to provide the strength of evidence supporting educational and behavioral treatments that target the core characteristics of autism spectrum disorders (ASD), 2) to describe the age, diagnosis, and skills/behaviors targeted for improvement associated with treatment options, 3) to identify the limitations of the current body of research on autism treatment, and 4) to offer recommendations for engaging in evidence-based practice for ASD (21). The report addressed some of the limitations of previous publications by reviewing the educational and behavioral treatment literature that targeted the core characteristics and associated symptoms of ASD and was published between 1957 and the 2007. Additionally, the report provided information about treatment effectiveness based on age, diagnostic groups, and treatment targets. Finally, the process of creating practice guidelines was completely transparent.

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otrzymano: 2012-11-07
zaakceptowano do druku: 2012-12-17

Adres do korespondencji:
*Monika Suchowierska
University of Social Sciences and Humanities
ul. Chodakowska 10/31, 03-815 Warszawa
tel.: +48 (22) 517-99-22
e-mail: monika.suchowierska@swps.edu.pl

Postępy Nauk Medycznych 1/2013
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