Outputs and Transfer - Research Goal 2.5:
Develop hearing protection recommendations for noise-exposed hearing-impaired workers
Because the activity for this research is relatively new, few outputs have been produced so far. Laboratory research on the effects of earmuff attenuation characteristics on speech intelligibility for hearing impaired subjects was the topic of a Ph.D. dissertation at The Ohio State University of one former HLR staff member.  A project protocol to field-test the models developed from the laboratory findings with hearing-impaired workers in the manufacturing sector has been approved.,  Hearing impaired workers have been recruited and audiometric assessment and hearing speech intelligibility testing are currently in process.
Intermediate outcomes have not yet occurred. However, results of this effort are already providing OSHA, MSHA, employers, and professional organizations with needed guidance on managing hearing-impaired individuals who work in noise through consultation and presentations.
Morata TC, Themann CL, Randolph RF, Verbsky BL, Byrne DC, Reeves ER . Attitudes and beliefs about hearing loss prevention among workers with self-reported hearing difficulties. Ear & Hearing.
Verbsky BL . Effects of conventional passive earmuffs, uniformly attenuating passive earmuffs, and hearing aids on speech intelligibility in noise. Doctoral dissertation, The Ohio State University.
Randolph R . Working Impaired in Dangerous Settings: What the What the Workers Tell Us. Platform presentation at the National Hearing Conservation Association annual conference.
Verbsky BL . Accommodation of Hearing-Impaired Workers in Noise. Research Podium presentation, Annual Convention of the American Academy of Audiology.
Verbsky BL . Hearing Aids + Earmuffs: Safe & Effective Within Limits. Poster presented at the National Hearing Conservation Association annual conference.
Verbsky BL, Feth LL . Hearing Conservation: Hearing Protection versus Speech Intelligibility and Personal Safety. Poster presentation at the 2002 meeting of the American Auditory Society.
 Verbsky BL . Effects of conventional passive earmuffs, uniformly attenuating passive earmuffs, and hearing aids on speech intelligibility in noise. Doctoral dissertation, The Ohio State University.
 Verbsky, BL . Accommodation of Noise-Exposed, Hearing-Impaired Workers: Phase III/IV – Field Implementation of Questionnaire and Evaluation Strategy. NIOSH Human Subject Review Board, HSRB 03-DART-06XP.
 Verbsky, BL . Accommodation of Noise-Exposed, Hearing-Impaired Workers. OMB Clearance 0920-040Z granted November 15, 2004.