speech testing

Question 1

speech detection/speech awareness threshold (SDT/SAT)

Answer 1

• used when patient cannot repeat words
• can use with children, foreign speakers, developmental delay, brain injury. etc.
• has limited diagnostic value
• can be used to estimate SRT
• usually is 10-15 dB lower than SRT
• CANNOT be used to predict pure tone average
• usually obtained using childs name

Question 2

what does SDT measure

Answer 2

the patients ability to DETECT the presence of speech

-do not need to identify word

Question 3

SRT and pure tone

Answer 3

should be similar

Question 4

speech recognition threshold (SRT)

Answer 4

• obtained by having pt point to pictures of repeat spondaic words back
• useful for gaining info about child’s hearing sensitivity in 500-2000 Hz

Question 5

speech discrim/ word recognition (WRT)

Answer 5

• can help understand the impact of HL on speech understanding abilities
• list of phonetically balanced words read to pt 45 dB ABOVE SRT and repeat back word
• scored as a percentage
• %es broken down in ranges (poor, good, etc)
• poor score may reflect retro cochlea loss
• score doesn’t always match audio