durations of tone presentations
1-2 seconds
ascending techniques
start at 0 dB and go up by 10
descending techniques
start high and decrease by 10 dB steps
ASHA (2005) treshold criteria
response 50% of the time (2 out of 3 presentations)
standard frequency progression
start at 1k then 2k, 3k, 4k, 6k, 8k
return to 1k then
250, 500 hz
when are interoctave frequencies tested?
when >20 dB difference between frequencies