Ralf W. Schlosser
Professor
Department: Department of Speech Language Pathology and Audiology
Office: 105 Forsyth Building
 
Résumé/CV

Phone: 617-373-3785
Fax: 617-373-8756
Email: r.schlosser@neu.edu

 
 

Education:
PhD, Purdue University
MA, University of Nebraska, Omaha
BSW, College of Social Work, Berlin
BS, Free University of Berlin


Research:
Research methods
Single-subject research
Meta-analysis
Treatment efficacy
Augmentative and alternative communication for people with little or no functional speech

Dr. Ralf W. Schlosser's research interests are related to the efficacy of interventions in augmentative and alternative communication (AAC) particularly as they relate to the role of speech output and different graphic symbol sets for individuals with developmental disabilities. He is also concerned with methodological issues in conducting efficacy research, including research design (in particular, single-subject experimental designs) and research synthesis (i.e., meta-analysis). Together with Dr. Doreen M. Blischak of the University of Florida, he is currently engaged in a research project on the effects of synthetic speech output and visual display feedback on spelling in children with autism (see Link to current research on autism).

Scholarly Interests
Augmentative and Alternative Communication (AAC)
Evidence-based Practice
Treatment/Intervention Efficacy
Outcomes
Systematic Reviews and Meta-analysis
Assistive Technology
Single-Subject Experimental Designs
Autism Spectrum Disorders
Developmental Disabilities

Dr. Schlosser is a Fellow of the American Speech-Language-Hearing Association (ASHA), a Fellow of the American Association on Intellectual and Developmental Disabilities (AAIDD), and a former Distinguished Switzer Fellow of the National Institute on Disability and Rehabilitation Research. Currently, he is the founding joint editor-in-chief of the journal Evidence-Based Communication Assessment and Intervention. His research and scholarship relates to the efficacy and effectiveness of augmentative and alternative communication (AAC) interventions for children with developmental disabilities such as autism and mental retardation. In addition, he is interested in evidence-based practice, and research methodology. Dr. Schlosser's research has been funded federally for the last decade. Most recently, he has been funded by NIDRR to develop EVIDAAC, a database of appraised evidence in AAC, together with colleagues from Australia (Drs. Raghavendra, Sigafoos), Canada (Dr. Eysenbach) and the U.S. (Drs. Dowden and Blackstone). Dr. Schlosser has published over 50 peer-reviewed articles, two books, and 25+ book chapters. He has repeatedly received the Editor's Award for the most significant research article published in Augmentative and Alternative Communication. He currently serves as the Research Coordinator of ASHA's Division 12 and is on the Editorial Board of the following journals: American Journal of Speech-Language Pathology, Augmentative and Alternative Communication, Educational Psychology, Journal of Behavioral Education, Journal of Communication Disorders, Journal of Special Education Technology, Journal of Speech, Language, and Hearing Research, and Research in Autism Spectrum Disorders.
Selected Publications and Presentations

Books
Schlosser, R. W. (2003). The efficacy of augmentative and alternative communication: Toward evidence-based practice. San Diego: Academic Press. [Amazon.com]
Julius, H., Schlosser, R. W., & Goetze, H. (2000). Kontrollierte Einzelfallstudien: Eine Alternative für die sonderpädagogische und klinische Forschung. Göttingen, Bern, Toronto, Seattle: Hogrefe

Recent peer-reviewed articles (since 2000)
25. Sigafoos, J., O'Reilly, M., Ganz, J., Lancioni, G. E., & Schlosser, R. W. (2007). Assessing correspondence following acquisition of an exchange-based communication system. Research in Developmental Disabilities, 28, 71-83.
24. Schlosser, R. W., Sigafoos, J., Luiselli, J., Angermeier, K., Schooley, K., Harasymowyz, U., & Belfiore, J. (2007). Effects of synthetic speech output on requesting and natural speech production in children with autism. Research in Autism Spectrum Disorders, 1, 139-163.
23. Schlosser, R. W., Koul, R., & Costello, J. (2007). Asking well-built questions for evidence-based practice in augmentative and alternative communication. Journal of Communication Disorders, 40, 225-238. [PDF]
22. Schlosser, R. W., Wendt, O., Bhavnani, S., & Nail-Chiwetalu, B. J. (2006). The use of information seeking strategies in evidence-based practice: The case of pearl growing. International Journal of Language and Communication Disorders, 41, 567-582.
21. Nigam, R., Schlosser, R. W., & Lloyd, L. L. (2006). Concomitant use of the matrix strategy and the mand-model procedure in teaching graphic symbol combinations. Augmentative and Alternative Communication, 22, 160-177.
20. Schlosser, R. W., Walker, E. & Sigafoos, J. (2006). Increasing opportunities for requesting in children with developmental disabilities residing in group homes through pyramidal training. Education and Training in Developmental Disabilities, 41, 244-252. [PDF]
19. Millar, D., Light, J. C., & Schlosser, R. W. (2006). The impact of augmentative and alternative communication intervention on the speech production of individuals with developmental disabilities: A research review. Journal of Speech, Language, and Hearing Research, 49, 248-264.
18. Schlosser, R. W., & O'Neil-Pirozzi, T. (2006). Problem formulation in evidence-based practice and systematic reviews. Contemporary Issues in Communication Sciences and Disorders, 33, 5-10. [PDF]
17. Schlosser, R. W., & Sigafoos, J. (2006). Augmentative and alternative communication interventions for persons with developmental disabilities: Narrative review of comparative single-subject experimental studies. Research in Developmental Disabilities, 27, 1-29. [PDF]
16. Schlosser, R. W., Wendt, O., Angermeier, K., & Shetty, M. (2005). Searching for and finding evidence in augmentative and alternative communication: Navigating a scattered literature. Augmentative and Alternative Communication, 21, 233-255. [PDF]
15. Sigafoos, J., O'Reilly, M., Ganz, J., Lancioni, G. E., & Schlosser, R. W. (2005). Supporting self-determination in AAC interventions by assessing preference for communication devices. Technology and Disability, 17, 143-153. [PDF]
14. Schlosser, R. W. (2005). Meta-analysis of single-subject research: how should it be done? International Journal of Language and Communication Disorders, 40, 375-378. [PDF]
13. Koul, R. J., & Schlosser, R. W. (2004). Effects of synthetic speech output in the learning of graphic symbols of varied iconicity. Disability and Rehabilitation, 26, 1278-1285. [PDF]
12. Schlosser, R. W., & Blischak, D. M. (2004). Effects of speech and print feedback on spelling in children with autism. Journal of Speech, Language and Hearing Research, 47, 848-862. [PDF]
11. Schlosser, R. W. (2004). Goal attainment scaling as a clinical measurement technique in communication disorders: A critical review. Journal of Communication Disorders, 37, 217-239. [PDF]
10. Schlosser, R. W., & Raghavendra, P. (2004). Evidence-based practice in augmentative and alternative communication. Augmentative and Alternative Communication, 20, 1-21. [PDF]
9. Blischak, D. M., & Schlosser, R. W. (2003). Use of technology to support independent spelling by students with autism. Topics in Language Disorders, 23, 292-302.
8. Schlosser, R. W. (2003). Roles of speech output in augmentative and alternative communication: Narrative review. Augmentative and Alternative Communication, 19, 5-28. [PDF]
7. Schlosser, R. W., & Sigafoos, J. (2002). Selecting graphic symbols for an initial request lexicon: Integrative review. Augmentative and Alternative Communication, 18, 102-123. [PDF]
6. Schlosser, R. W. (2002). On the importance of being earnest about treatment integrity. Augmentative and Alternative Communication, 18, 36-44. [PDF]
5. Schlosser, R.W., & Blischak, D. M. (2001). Is there a role for speech output in interventions for persons with autism? A review. Focus on Autism and Other Developmental Disabilities, 16, 170-178. [PDF]
4. Koul, R., Schlosser, R. W., & Sanscribrian, S. (2001). Effects of symbol, referent, and instructional variables on the acquisition of aided and unaided symbols by individuals with autism spectrum disorders. Focus on Autism and Other Developmental Disabilities, 16, 162-169. [PDF]
3. Bose, A., Square, P. A., Schlosser, R., & van Lieshout, P. (2001). Effects of PROMPT therapy on speech motor function in a person with aphasia and apraxia of speech. Aphasiology, 15, 767-785. [PDF]
2. Schlosser, R. W., & Lee, D. (2000). Promoting generalization and maintenance in augmentative and alternative communication: A meta-analysis of 20 years of effectiveness research. Augmentative and Alternative Communication, 16, 208-227. [PDF]
1. Schlosser, R. W., McGhie-Richmond, D., Blackstien-Adler, S., Mirenda, P., Antonius, K., & Janzen, P. (2000). Training a school team to integrate technology meaningfully into the curriculum: Effects on student participation. Journal of Special Education Technology, 15, 31-44. [PDF]

Recent Book Chapters
1. Sigafoos, J., O'Reilly, M., Schlosser, R. W., & Lancioni, G. E. (2007). Communication, language, and imaginative play. In P. Sturmey & Fitzer, A. (Eds.), Autism Spectrum Disorders: Applied behavior analysis, evidence and practice. Austin, TX: PRO-ED.
2. Schlosser, R. W., Sigafoos, J., Rothschild, N., Burke-Brassam, M. & Palace, L. (2007). Speech and language disorders. In I. Brown, & M. Percy (Eds.), A comprehensive guide to intellectual and developmental disabilities (pp. 383- 400). Baltimore: Paul H. Brookes Publishing Co.
3. Schlosser, R. W., McGhie-Richmond, D., & Arvidson, H. (2007). Augmentative and alternative communication in school settings. In E. Gravani, & J. Meyer (Eds.), Speech, language, and hearing programs in schools: A guide for students and practitioners (pp. 385- 408). Austin, TX: Pro-Ed.
4. Schlosser, R. W. (2004). Hierarchies of evidence: Considerations for augmentative and alternative communication. In S. von Tetzchner, & Mogens Hymens (Eds.), Issues and trends in augmentative communication theory and research. Toronto: International Society for Augmentative and Alternative Communication.
5. Schlosser, R. W. (2003). Outcomes measurement in augmentative and alternative communication. In J. Light, J. Reichle, & D. Beukelman (Eds.), Communicative competence for individuals who use AAC: From research to effective practice (pp. 479- 513). Baltimore: Brookes.
Evidence-Based Practice
1. Asking well-built questions
Asking the right kind of question is arguably the most important step in the EBP process. The following
Schlosser, R. W., Koul, R., & Costello, J. (in press). Asking well-built questions for evidence-based practice in augmentative and alternative communication. Journal of Communication Disorders.
Schlosser, R. W., & O'Neil-Pirozzi, T. (2006). Problem formulation in evidence-based practice and systematic reviews. Contemporary Issues in Communication Sciences and Disorders, 33, 5-10.
2. Searching for evidence
Schlosser, R. W., Wendt, O., Bhavnani, S., & Nail-Chiwetalu, B. J. (2006). The use of information seeking strategies in evidence-based practice: The case of pearl growing. International Journal of Language and Communication Disorders, 41, 567-582.
Schlosser, R. W., Wendt, O., Angermeier, K., & Shetty, M. (2005). Searching for and finding evidence in augmentative and alternative communication: Navigating a scattered literature. Augmentative and Alternative Communication, 21, 233-255.
3. Appraising and synthesizing evidence
Schlosser, R. W. (2007). Appraising the quality of systematic reviews. Focus: Technical Brief No. 17,1-8. National Center for the Dissemination of Disability and Rehabilitation Research. (PDF)
Schlosser, R. W., & Sigafoos, J. (2006). Augmentative and alternative communication interventions for persons with developmental disabilities: Narrative review of comparative single-subject experimental studies. Research in Developmental Disabilities, 27, 1-29.
Millar, D., Light, J. C., & Schlosser, R. W. (2006). The impact of augmentative and alternative communication intervention on the speech production of individuals with developmental disabilities: A research review. Journal of Speech, Language, and Hearing Research, 49, 248-264.
Schlosser, R. W. (2006). The role of systematic reviews in evidence-based practice, research, and development. Focus: Technical Brief No. 15,1-4. National Center for the Dissemination of Disability and Rehabilitation Research.
Blischak, D. M., & Schlosser, R. W. (2003). Use of technology to support independent spelling by students with autism. Topics in Language Disorders, 23, 292-302.
Schlosser, R. W. (2003). Roles of speech output in augmentative and alternative communication: Narrative review. Augmentative and Alternative Communication, 19, 5-28.
Schlosser, R. W., & Sigafoos, J. (2002). Selecting graphic symbols for an initial request lexicon: Integrative review. Augmentative and Alternative Communication, 18, 102-123.
Schlosser, R.W., & Blischak, D. M. (2001). Is there a role for speech output in interventions for persons with autism? A review. Focus on Autism and Other Developmental Disabilities, 16, 170-178.
Schlosser, R. W., & Lee, D. (2000). Promoting generalization and maintenance in augmentative and alternative communication: A meta-analysis of 20 years of effectiveness research. Augmentative and Alternative Communication, 16, 208-227.
 

Recent Presentations
Schlosser, R. W. (2007, August 7, 2007). The role of review and
evidence-based journals in logopedics and phoniatrics. Paper presented at
the 27th World Congress of the International Association of Logopedics and
Phoniatrics, Copenhagen, DENMARK.[PDF]
Schlosser, R. W., & Wendt, O. (2007, August 6, 2007). Effects of AAC
intervention on speech production in autism: A systematic review. Paper
presented at the 27th World Congress of the International Association of
Logopedics and Phoniatrics, Copenhagen, DENMARK. [PDF]


 
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