Archived Presentations

Cox, RM. “Improving hearing aid outcomes: using evidence, choosing technology, and listening to patients” Invited paper presented at the American Academy of Audiology North Carolina chapter Fall conference, Asheville, NC, September 2012.

Cox, RM.  “Loudness & Maximum Output (MPO) Prescription”.  AudiologyOnline recorded course. Supported by Siemens Expert Series of eSeminars, August 2011.

Cox, RM.  “Hearing aids and the loudness problem”  Invited Carhart Lecture presented at the Annual Meeting of the American Auditory Society, Scottsdale, AZ, March, 2010.

Cox RM.  “Hearing aids in older adults:  Outcomes and preferences”.  Invited paper presented at the Third International and Interdisciplinary Research Conference  on Aging and Speech Communication,  October 11-14, 2009.  Bloomington IN.

Cox, RM.   “Current state of knowledge:  Hearing aid adoption, provision and outcomes”.  Invited presentation at NIDCD Workshop on Research Needs for Accessible and Affordable Hearing Health Care for Adults with Mild to Moderate Hearing Loss.  Washington, DC.  August 26-28, 2009.

Cox, RM. “Update ’08: Self-report measures in hearing aid provision”. Invited paper presented at the Annual Convention of the American Speech-Language-Hearing Association, Chicago, IL, November, 2008.

Cox, RM. “What proportion of older adults prefer a bilateral hearing aid fitting in daily life?” Paper presented at the biennial meeting of the International Collegium of Rehabilitative Audiology, Leuven, Belgium, June, 2007.

Cox, RM., Alexander, GC., Noe, C., Goshorn, J., Powers, C., Lilly, J. “Preference for one or two hearing aids among older adults.” Refereed paper presented at the Annual Meeting of the American Auditory Society, Scottsdale, AZ, March, 2007.

Cox, RM. “Personality of hearing aid patients: Before, during, and after the fitting”. Invited Keynote address. Hearing Care for Adults: An International Conference. Chicago, IL. November 13-15, 2006.

Cox, RM. “Self-report outcomes: more than you thought and less.” Keynote address. XVII National Conference of the Audiological Society of Australia. Perth, Australia, May 16-19, 2006.

Cox, RM. “Validation of Outcomes”. Invited paper presented at The Art and Science of Teaching Amplification: A Teaching Audiology Conference, Pittsburgh, PA, June, 2005.

Cox, RM. “Evidence-Based Practice”. Invited paper presented at The Art and Science of Teaching Amplification: A Teaching Audiology Conference, Pittsburgh, PA, June, 2005.

Cox, RM. “All about Self-report” Invited paper presented at the Saskatchewan Hearing Health Conference, Moosejaw, SK, Canada, May, 2005.

Cox, RM. Comparison of public health and private practice hearing aid patients in the USA. Paper presented at the biennial meeting of the International Collegium of Rehabilitative Audiology, Gainesville, FL, March, 2005.

Cox, RM. “Three self-report questionnaires for hearing aid fitting and validation”. Invited paper presented at the Resound University Meeting, Las Vegas NV, Feb, 2005.

Cox, RM. Using self-report questionnaires: SADL, IOI-HA and APHAB. Invited paper presented at Amplification Update, Iowa City IA, October, 2004.

Cox, RM “Evidence Based Practice in Hearing Care: How do we get there from here?”. Invited paper presented at the Hearing Health Rendezvous, Jackson Hole WY, Sept, 2004.

Cox, RM. “Part 1: Outcome Domains” in Van Vliet DD, Cox RM, and Abrams HB, “The application of outcome measures in daily clinical service”. Featured Session at the Annual Convention of the American Academy of Audiology, Salt Lake City, UT, April, 2004.

Cox, RM. Alexander, GC. And Gray, GA. “Hearing Aid Fitting: Self-report Outcomes over Six Months” Refereed paper presented at the American Auditory Society Annual Meeting, Scottsdale, AZ, March, 2004.

Cox, RM. “Validating Hearing Aid Effectiveness using Self-Report Measures”. Invited paper presented at the Illinois Academy of Audiology Annual Convention, Chicago, IL, January, 2004.

Cox, RM. “Self-Report Measures and Evaluation of Hearing Aid Fittings”. Invited paper presented at the Audiosymposium II, Madrid Spain, November, 2003.

Cox, RM. “Validating Hearing Aid Effectiveness with Self-Report Measures”. Invited paper presented at the Mayo Clinic Audiology Video-Conference, Rochester MN, November, 2003.

Cox, RM., “Choosing and Using Self-Report Measures in VA and Private-Pay Clinics” Invited paper presented at “A Multidimensional Approach to Auditory Rehabilitation” National Center for Rehabilitative Auditory Research Conference, Portland OR, October, 2003.

Cox, RM. “Hearing Aid Update: Self-report measures.” Invited paper presented at the Morton Plant Mease 17th Annual Conference by the Beach, Clearwater, FL, October, 2003.

Cox, RM. “Self-report: Considerations for assessing effectiveness of hearing aids” Invited paper presented at the Scott Haug Foundation Retreat, Kerrville, TX, October, 2003.

Cox, RM. “Clinical Use of Outcome Measures in the USA”. Invited paper presented at the CRSA Conference: Outcome Assessment in Audiology and Otology, Salzburg, Austria, November, 2002.

Cox, RM. “Outcome Measures And Their Relevance To The Retail Dispenser”. Invited paper presented at the Bi-Annual Congress of the British Society of Hearing Aid Audiologists, Birmingham, England, November, 2002.

Cox, RM. “Documenting Outcomes: Why? How? When? & Whoa!” Invited paper presented at the Academy of Rehabilitative Audiology Summer Institute, Lake Lure, NC, June, 2002.

Cox, RM, Alexander, GC and Beyer, CM. “Norms for the International Outcome Inventory for Hearing Aids”. Refereed paper presented at the American Auditory Society Annual Meeting, Scottsdale, AZ, March, 2002.

Cox, RM. “Assessment of Subjective Outcome of Hearing Aid Fitting: Getting the Client’s Point of View”. Invited paper presented at the Workshop On Assessment Of Auditory Communication: From Lab To Real Life, Orebro University, Ahlsen Research Institute, Sweden. September, 2001.

Cox, RM. “Is it all in your head? (Relationships between personality and outcomes)” Invited paper presented at Hearing Aid Outcome Measures: A CHARTTing the course Research Conference, Bloomington, IN, May, 2001.

Cox, RM. “Self-report outcomes: Getting the patient’s point of view”. Invited paper presented at the inaugural meeting of the Academy of VA Audiologists, San Diego, CA, April, 2001.

Cox, RM, and Alexander, GC. “International outcome inventory for hearing aids: An introduction”. Refereed paper presented at the annual meeting of the American Auditory Society, Scottsdale, AZ, March, 2001.

Cox, RM. “Relationships among relevant patient variables”. Invited paper presented at “Management of the Hearing Impaired: Enhancing patient satisfaction”, JFK Conference Center, Edison NJ., October, 2000.

Cox, RM. “Pre-fitting expectations: Do they really matter?” Invited paper presented at the Jackson Hole Rendezvous, Jackson Hole WY., September, 2000.

Cox, RM and Alexander, GC. “Measured satisfaction: What does it tell us?” Invited paper presented at the International Hearing Aid Research Conference, Lake Tahoe, CA, August, 2000.

Cox, RM. “Client characteristics: Impact on hearing aid fitting outcomes.” Invited keynote address presented at the Oticon Human Link Conference, Winston-Salem, NC, July, 2000.

Cox, RM. “Contributions of non-hearing aid variables to subjective hearing aid fitting outcome”. Invited paper presented at the Hearing Aid Amplification for the New Millennium Conference, Sydney, Australia, November, 1999.

Cox, RM. “Seeking the secrets of satisfaction”. Invited paper presented at the Hearing Aid Amplification for the New Millennium Conference, Sydney, Australia, November, 1999.

Cox, RM. “The Client’s Point of View: Self-Assessment of Hearing Aid Fitting Outcomes”. Invited paper presented at The World of Hearing Conference, Brussels, Belgium, May, 1999

Cox, RM. “Pre-fitting Expectations: Realism, Stability and Relation to Outcome”. Presented at the Biennial Meeting of the International Collegium of Rehabilitative Audiology, Vancouver, Canada, April, 1999.

Cox, RM. “Self-report Measurement of Hearing Aid Outcome” Presented at the 29th Annual Mid-South Conference on Communicative Disorders, Memphis, TN., March, 1999.

Cox, RM. “Satisfaction with Amplification in Daily Life”. Invited paper presented at the Audiology Practices ,Inc., Annual meeting, Dallas, TX., October, 1998.

Cox, RM. “Satisfaction: What is it? Whose got it? And why? Invited paper presented at the Jackson Hole Rendezvous, Jackson Hole WY., August, 1998.

Cox, RM. “The Satisfaction with Amplification in Daily Life (SADL) Scale: Preliminary Report.” Invited paper presented at the Acustika Congress, Verbier, Switzerland, June 1998.

Cox, RM., and Alexander, GC. “Listener Satisfaction with Hearing Aids” Invited paper presented at the Conference on Issues in Advanced Hearing Aid Research, Lake Arrowhead, CA, May, 1998.

Cox, RM. “Self-Assessed Benefit: How Valid? How Important?” Invited paper presented at the American Academy of Audiology Pre-Convention Workshop, Defining and Measuring the Benefit of Hearing Aids and Assistive Listening Devices, Los Angeles, CA, April, 1998.

Cox, RM. “The Nuts and Bolts of the APHAB”, Invited paper presented for the National Ear Care Plan, Los Angeles, CA, April, 1998.

Cox, RM. “Personality and Hearing Aid Outcome Data”, in Bentler, RA., Cox, RM., and Humes, L. “Hearing Aid Outcomes: Report from the Research Front”. Featured session presented at the National Convention of the American Academy of Audiology, Los Angeles, CA, April, 1998.

Cox, RM. “The Satisfaction with Amplification in Daily Life (SADL) Scale: Preliminary report”. Paper presented at the biennial meeting of the International Collegium of Rehabilitative Audiology, Amsterdam, Holland, November, 1997.

Cox, RM. “Satisfaction with amplification in daily life: the SADL Scale” Invited paper presented at the Audiology-Amplification Update III, San Francisco, CA, October, 1997.

Cox, RM. “APHAB: Administration and applications”. Invited paper presented at the Phonak Seminars in Sweden, Kristianstad, Gothenberg, and Stockholm, September, 1997.

Cox, RM. “Measuring outcomes of hearing aid fitting”. Invited paper presented at the National Conference of the Canadian Association of Speech-Language Pathologists and Audiologists, Toronto Canada, May, 1997.

Cox RM. “The Abbreviated Profile of Hearing Aid Benefit (APHAB): Applications and Admonitions”. Invited paper presented at the Third Annual PPAAC Conference, Halifax, Nova Scotia, Canada, October, 1996.

Cox RM. “Profiles of Hearing Aid Users: Personality and Potential for Successful Use of Hearing Aids”. Invited paper presented at the Jackson Hole Rendezvous Conference for Hearing Health Professionals, Jackson Hole, WY, September, 1996.

Cox, RM. “Relationship between Self-assessed Hearing Aid Benefit and Non-auditory Variables”. Lake Arrowhead Conference in Advanced Hearing Aid Research, Lake Arrowhead, CA, May, 1996.

Cox, RM. “Rationale and Use of VIOLA Software for Hearing Aid Selection”. Invited paper presented at the Audiological Resource Association Winter Conference, Atlanta, GA., February, 1996.

Cox, RM. “Administration and Scoring of the APHAB Test”. Invited paper presented at the Audiological Resource Association Winter Conference, Atlanta, GA., February, 1996.

Cox, RM. “The IHAFF Hearing Aid Fitting Protocol”. Invited paper presented at the Audiological Resource Association Winter Conference, Atlanta, GA., February, 1996.

Cox, RM. “Self-Assessment the APHAB Way”. Invited paper presented at the Robert Monzon Memorial Conference Series: Issues in Evaluation and Fitting of State-of-the-Art Hearing Aids, New York, NY, November, 1995.

Cox, RM. “Hearing Aid Selection: Tuning in to VIOLA”. Invited paper presented at the Robert Monzon Memorial Conference Series: Issues in Evaluation and Fitting of State-of-the-Art Hearing Aids, New York, NY, November, 1995.

Cox, RM. “A Comprehensive Hearing Aid Fitting Protocol – IHAFF”. Invited presentation presented at the Fourth Annual Seminar of the Alberta Association of Private Practice Audiologists, Red Deer, Alberta, Canada, September, 1995.

Cox, RM. “Administration and Application of the APHAB”. Invited paper presented at the Danish Seminars in Audiology on Verification of Hearing Aid Fitting. Arhus and Copenhagen, August, 1995.

Cox, RM. “VIOLA (Visual Input/Output Locator Algorithm)”. Invited paper presented at the Pre-Convention Workshop: The IHAFF Protocol for Fitting Hearing Aids. The Academy of Rehabilitative Audiology Summer Institute, Orlando, FL, June, 1995.

Cox, RM. “APHAB (Abbreviated Profile of Hearing Aid Benefit)”. Invited paper presented at the Pre-Convention Workshop: The IHAFF Protocol for Fitting Hearing Aids. The Academy of Rehabilitative Audiology Summer Institute, Orlando, FL, June, 1995.

Van Vliet, D., Bentler, R., Cox, R., and Fabry, D. “Hearing Instruments I: The Independent Hearing Aid Fitting Forum Protocol”. Invited paper presented at the American Academy of Audiology Annual Convention, Dallas, TX, March, 1995.

Cox, RM. “The IHAFF Procedure for Hearing Aid Fitting”. Invited paper presented at the 25th Annual Mid-South Conference on Communicative Disorders, Memphis, TN, February, 1995.

Cox, RM. “Relationship between Loudness Perception and Hearing Aid Selection”, Invited paper presented in the Sixth Annual Audiology Videoconference, Mayo Clinic, Rochester, MN, November, 1994.

Cox, RM. “Hearing Aid Selection Process – VIOLA” Invited paper presented at the Hearing Health Rendezvous, Jackson Hole, WY, August, 1994.

Cox, RM. “Pre-fitting Patient Assessment: APHAB” Invited paper presented at the Hearing Health Rendezvous, Jackson Hole, WY, August, 1994.

Cox, RM. “Maturation of hearing aid benefit in elderly first-time users” Invited paper presented at the 1994 Lake Arrowhead International Conference on Issues in Advanced Hearing Aid Research. Lake Arrowhead, CA, May, 1994.

Cox, RM and Alexander, GC. “Prediction of Hearing Aid Benefit: The Role of Preferred Listening Level. Invited paper presented at the International Hearing Aid Conference II, Iowa City, Iowa, June 1993.

Cox, RM. “Problems in the prediction of hearing aid benefit”. Invited presentation at “Issues in Advanced Hearing Aid Research”, Lake Arrowhead, CA. May, 1992.

Cox, RM., and Alexander, GC. “The evolution of hearing aid benefit.” Refereed paper presented at American Speech-Language-Hearing Association National Convention, Atlanta, GA, November, 1991.

Cox, RM. “Studies of hearing aid benefit”. Invited paper presented at the American Academy of Audiology Convention, Denver, CO, April, 1991.

Gilmore, C., and Cox, RM. “Relationship of LDL to preferred SSPL90” Refereed paper presented at American Speech-Language-Hearing Association National Convention, Seattle, WA., November, 1990.

Cox, R.M., and Alexander, G.C. “Hearing aid benefit in everyday environments”. Refereed paper presented at American Speech-Language-Hearing Association National Convention, Seattle, WA., November, 1990.

Cox, R.M. “Objective and self-report measures of hearing aid benefit”. Invited paper presented at the Second Vanderbilt Hearing Aid Conference, Nashville, TN., September, 1990.

Cox, R.M. “Evaluating hearing aid performance in the laboratory and in daily life”. Invited presentation at “Issues in Advanced Hearing Aid Research”, Lake Arrowhead, CA. May, 1990.

Cox, R.M., and Alexander, G.C. “Comparison of objective and subjective measures of speech intelligibility”. Refereed paper presented at American Speech-Language-Hearing Association National Convention, St. Louis, MO., November, 1989.

Cox, R.M., Alexander, G.C., Gilmore, C. and Pusakulich, K.M. “The CST: A tool for measuring hearing aid benefit”. Refereed paper presented at American Speech-Language-Hearing Association National Convention, Boston, MA., November, 1988.

McDaniel, DM., and Cox, RM. “Evaluation of the SIR test for hearing aid stratification”. Refereed paper presented at American Speech-Language-Hearing Association National Convention, Boston, MA., November, 1988.

Cox, R.M., Alexander, G.C., Gilmore, C. and Pusakulich, K.M. “Development of the CST for measuring hearing aid benefit”. Refereed paper presented at American Speech-Language-Hearing Association National Convention, New Orleans, LA, November, 1987.

Cox, R.M. “Options in selection of frequency response characteristics.” Invited paper presented at American Speech-Language-Hearing Association Hearing Aid Workshop, Detroit, MI, November, 1986.

Cox, R.M., Peck, R.F., and Clasgens, P.S. “Investigation of loudness-based gain prescriptions.” Refereed paper presented at American Speech-Language-Hearing Association National Convention, Detroit, MI, November, 1986.

McDaniel, D.M. and Cox, R.M. “Development of the S.I.R. Test for hearing aid comparison.” Refereed paper presented at American Speech-Language-Hearing Association National Convention, Detroit, MI, November, 1986.

Cox, R.M., Alexander, G.C., Gilmore, C. and Pusakulich, K.M. “Intelligibility of average talkers in typical listening environments”. Refereed paper presented at American Speech-Language-Hearing Association National Convention, Detroit, MI, November, 1986.

Cox, R.M. and Gilmore, C. “Hearing Impaired Listener Judgements of Damped and Undamped Frequency Responses.” Refereed paper presented at American Speech-Language-Hearing Association National Convention, Washington, DC, November, 1985.

Cox, R.M. and Risberg, D.M. “Clinical Comparison of ITE and OTE Hearing Aids.” Refereed paper presented at American Speech-Language-Hearing Association National Convention, Washington, DC, November, 1985.

Cox, R.M. and McDaniel, D.M. “Development and Application of a Continuous Discourse Test for Use in Hearing Aid Selection.” Paper presented at the Fifteenth Annual Mid-South Conference on Communicative Disorders, Memphis, TN, February, 1985.

Cox, R.M. “Clinical Application of Earmold Acoustics.” Invited paper presented at the Conference on Current Issues in Hearing aid Technology, Little, Rock, AR, September, 1984.

Cox, R.M. “Hearing Aid Selection Procedures.” Invited paper presented at the Conference on Current Issues in Hearing aid Technology, Little Rock, AR, September, 1984.

McDaniel, D.M., Krygier, K.M. and Cox, R.M. “An Alternative to Earphone Threshold Testing in a Pediatric Population.” Refereed paper presented at ASHA National Convention, Cincinnati, OH, November, 1983.

Cox, R.M. and B.L. Sherbecoe. “Effect of Psychophysical Method on Repeatability of Loudness Discomfort Levels.” Refereed paper presented at ASHA National Convention, Cincinnati, OH, November, 1983.

Cox, R.M. and D.M. McDaniel. “Intelligibility Ratings of Continuous Discourse in Hearing Aid Selection.” Refereed paper presented at ASHA National Convention, Cincinnati, OH, November, 1983.

Cox, R.M. and J.D. Bisset. “Relationship Between Objective and Subjective Measures of Aided Binaural Advantage.” Refereed paper presented at ASHA National Convention, Toronto, Canada, November, 1982.

Cox, R.M. “Hearing Aid Selection and Evaluation.” Invited paper presented at the Minnesota Speech-Language and Hearing Association Meeting, St. Cloud, MN, April, 1982.

Cox, R.M. “Integrating the Earmold into Hearing Aid Selection.” Refereed paper presented at ASHA National Convention, Los Angeles, CA, November, 1981.

Cox, R.M. and G.C. Alexander. “Acoustic Versus Electronic Modifications of Hearing Aid Low Frequency Output.” Refereed paper presented at ASHA National Convention, Los Angeles, CA, November, 1981.

Cox, R.M. “Functional Correlates of Electroacoustic Performance Data.” Invited paper presented at the Conference on Amplification for the Hearing Impaired: Research Needs, Nashville, TN, June, 1981.

Cox, R.M. “Hearing Aid Selection for Post Lingually Impaired Individuals.” Featured Speaker at Eleventh Annual Mid-South Conference on Communicative Disorders, Memphis, TN, February, 1981.

Cox, R.M. “Procedure for Establishing Limiting Levels in Hearing Aid Fitting.” Refereed paper presented at ASHA National Convention, Detroit, MI, November, 1980.

Cox, R.M. and J.D. Bisset. “Rationale for Gain Prescriptions in Hearing Aid Fittings.” Refereed paper presented at ASHA National Convention, Detroit, MI, November, 1980.

Cox, R.M. “Systems and Standards for the Measurement of Electroacoustic Characteristics.” Invited paper presented at Audiology Update-80, Itasca, IL, August, 1980.

Cox, R.M. “Earmold and Tubing Acoustics.” Invited paper presented at Audiology Update-80, Itasca, IL, August, 1980.

Studebaker, G.A., R.E.C. White, S. Hoffnung and R.M. Cox. “Studies of a Paired Comparison Hearing Aid Selection Procedure.” Refereed paper presented at ASHA National Convention, Atlanta, GA, November, 1979.

Cox, R.M., D.J. Wark and D. Van Ort. “Verification of Binaural Hearing Aid Selection.” Refereed paper presented at ASHA National Convention, Atlanta, GA, November, 1979.

Cox, R.M. “Non-audible Acoustic Feedback: Effect on Functional Hearing Aid Performance.” Refereed paper presented at ASHA National Convention, San Francisco, CA, November, 1978.

Cox, R.M. and D.J. Wark. “MCL at the Eardrum in Aided and Unaided Conditions.” Refereed paper presented at ASHA National Convention, San Francisco, CA, November, 1978.

Studebaker, G.A., R.M. Cox and C. Formby. “The Effect of Environment on the Directional Performance of Headworn Hearing Aids.” Invited paper presented at the Conference on Acousticl Factors Affecting Hearing Aid Measurement and Performance, New York, NY, June, 1978.

Cox, R.M. and G.A. Studebaker. “Problems in the Recording and Reproduction of Hearing Aid Processed Signals.” Invited paper presented at the Conference on Acoustical Factors Affecting Hearing Aid Measurement and performance, New York, NY, June, 1978.

Cox, R.M. and D.J. Wark. “Hearing Aid Fitting – Prescription of Trial?” Paper presented at the Eighth Annual Mid- South Conference on Communicative Disorders, Memphis, TN, February, 1978.

Studebaker, G.A. and R.M. Cox. “Evaluation of a New Protocol for Production of Hearing Aid Processed Signals.” Paper presented at the 94th Meeting of the Acoustical Society of America, Miami Beach, FL, December, 1977.

Studebaker, G.A. and R.M. Cox. “Functional Lumped Parameter Model Predicting Receiver-Earcanal Coupling Acoustic Effects.” Refereed paper presented at ASHA National Convention, Chicago, IL, November, 1977.

Cox, R.M. and G.A. Studebaker. “Side-branch and Parallel Vent Effects in Earcanals and ‘Earlike’ Couplers.” Refereed paper presented at ASHA National Convention, Chicago, IL, November, 1977.

Studebaker, G.A., R.M. Cox and C. Formby. “The Effects of Environment on the Directional Performance of Head- Worn Hearing Aids.” Paper presented at the Ninth International Congress on Acoustics, Madrid, Spain, July, 1977.

Studebaker, G.A. and R.M. Cox. “A Comparison of a Two-Branch and a Four-Branch Artificial Ear.” Paper presented at 93rd Meeting of the Acoustical Society of America, State College PA, June, 1977.

Studebaker, G.A. and R.M. Cox. “Electoracoustics of Hearing Aids and Earmold Acoustics.” Invited paper presented at American Speech and Hearing Association Northeast Regional Conference, Boston, MA, April, 1977.

Studebaker, G.A., R.M. Cox and D.J. Wark. “Effects of Earmold Modification Measured by Coupler, Threshold and Probe Techniques.” Paper presented at 92nd Meeting of the Acoustical Society of America, San Diego, CA, November, 1976.

Cox, R.M. and D.J. Wark. “Effects of Earmold Modifications on Auditory Threshold and on Earcanal and Coupler Spectrum Levels.” Refereed paper presented at ASHA National Convention, Houston, TX, November, 1976.

Cox, R.M. “Spectral Changes Produced by Earphone-Cushion Reproduction of Hearing Aid Processed Signals.” Refereed paper presented at ASHA National Convention, Houston, TX, November, 1976. Studebaker, G.A. and R.M. Cox. “Studies of the effect of Environment and Other Factors on Hearing Aid Processed Signals.” Invited paper presented at the Biannual Meeting of the Alexander Graham Bell Association, Boston, MA, June, 1976