ASA 129th Meeting - Washington, DC - 1995 May 30 .. Jun 06
3pPP8. Combining ratings and paired comparisons in hearing aid evaluation.
Arlene C. Neuman
Ctr. for Res. in Speech and Hear. Sci., Graduate School and Univ.
Ctr., City Univ. of New York, 33 W. 42nd St., New York, NY 10036
The method of paired comparisons is a rapid and efficient technique which
has proven to be useful in hearing aid evaluation. In the conventional
application of the technique, the subject is limited to a binary decision.
Greater efficiency can be obtained if, in addition, a confidence rating is
obtained. A method for combining confidence ratings with paired-comparison data
is provided. Data are presented in which a set of hearing aids differing in
compression characteristics (compression ratio, release time) was evaluated by
the traditional paired-comparison technique and the paired-comparison plus
rating technique. Data will also be presented on the relative precision and
efficiency of the two techniques.