Products

COSI and HAUQ

The Client Oriented Scale of Improvement (COSI) is a clinical tool developed by NAL for outcomes measurement. It is an assessment questionnaire for clinicians to use which allows them to document their client’s goals/needs and measures improvements in hearing ability. One of the greatest advantages of the procedure has been to promote a greater focus on the client’s individual needs when designing their rehabilitation program.

The COSI, although very useful for adult clients, has some drawbacks for use with children. The goals/needs of children are likely to be much more diverse than those of adults, making it much more difficult to utilize the “Degree of Change” and “Final Ability” Scales of the COSI. The Client Oriented Scale of Improvement for Children (COSI-C) has been designed to try to incorporate the basic design of the COSI with some changes to make it more useful for paediatric clients.

The following documents may be freely downloaded and reproduced for use with individual patients. Commercialisation of COSI™ is strictly prohibited unless agreement from NAL has been obtained.

Click here to download the COSI™ Questionnaire
Click here to download instructions for administration of COSI™ to adults
Click here to download COSI-C™ Questionnaire for children
Click here to download instructions for administration of COSI-C™ to children
Click here to download the COSI™ Questionnaire in Arabic

The Hearing Aid User’s Questionnaire (HAUQ) is designed to assess hearing aid use, benefit, problems and overall satisfaction.
Click here to download the HAUQ

Further Reading:

  1. Dillon H, James A and Ginis J (1997). The Client Oriented Scale of Improvement (COSI) and its relationship to several other measures of benefit and satisfaction provided by hearing aids. Journal of the American Academy of Audiology, 8:27-43.
  2. Dillon H, Birtles G, and Lovegrove R. (1999) Measuring the outcomes of a national rehabilitation program: normative data for the Client Oriented Scale of Improvement (COSI) and the Hearing Aid Users Questionnaire (HAUQ). Journal of the American Academy of Audiology, 10(2): 67-79.
  3. Dillon H & So M (2001). Incentives and obstacles to the routine use by clinicians of outcomes measures. Ear & Hearing, 21(4):2-6.
  4. Cox RM, Hyde M, Gatehouse S, et al (2000). Optimal outcome measures, research priorities, and international cooperation. Ear & Hearing, 21(4):106S-115S.
  5. Dillon H (2001). Hearing Aids. Boomerang Press, Sydney.