A Study of Recorded versus Live Voice Word Recognition
In this study, we examined administration times for monitored-live-voice (MLV) versus
recorded presentation of NU-6 word lists for listeners with normal hearing and hearing
loss. This study documented that test administration time for MLV presentation of
monosyllabic word lists was significantly shorter than that for recorded presentations
of the same stimuli for listeners with normal hearing and hearing impairment. However,
this difference was just over one minute for listeners with normal hearing (1 min,
9 sec) and just under one minute for listeners with hearing loss (49 sec). The listeners
with hearing loss took longer to respond to the stimuli than the listeners with normal
hearing which reduced the difference in administration time between MLV and recorded
lists for this population. Given that the majority of patients audiologists test have
hearing loss, the average difference in test administration time between MLV and recorded
presentation was less than one minute. Thus, although this is a statistically significant
difference, it is our belief that this difference is not clinically significant. That
is, given these findings, we suggest that clinicians should be willing to sacrifice
less than one minute of time per word list for greater reliability of the results.
Portions of this study were presented at the American Speech-Language-Hearing Association
(ASHA) Annual Convention in November, 2010 and at AudiologyNOW! in April, 2011. This
manuscript was published in The International Journal of Audiology in 2011.
From Mendel, L.L. & Owen, S.R. (2011). A study of recorded versus live voice word
recognition. International Journal of Audiology, 50(10), 688-693.
Administration time in minutes across the three presentation conditions and the two
groups. CD track lengths are also plotted for the long and short ISIs (interstimulus
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