Exam Questions and CORRECT Answers
SDT: Speech Detection Threshold - CORRECT ANSWER - Definition: the lowest level in
dB that a person can just detect the presence of speech and identify it as speech 50% of the time
-helpful when working with infants and uncooperative children (reduced cognitive function)
-usually 2 syllable words as stimulus
-not popular due to lack of relevant info (really just a screening for further testing)
*aka Speech Awareness Threshold (SAT)
SRT Method - CORRECT ANSWER - Bracketing technique: bracket until 3 correct
responses have been obtained at a given level
-most use because requires no knowledge of other results, involves use of up 5/down10 steps
(same as pure tone)
SRT Purpose - CORRECT ANSWER - -basis for Word Recognitions testing
-check on pure tone results (can be predicted form PTA; This = PTA + or - 6 dB)
-categorize hearing loss
-help with judgements as needed for amplification
-used in hearing aid evaluation to determine correct amount of gain
SRT: Speech Recognition Threshold - CORRECT ANSWER - -defined as lowest level in
dB that a person can correctly identify the speech stimuli 50% of the time
-Hudgins et. al (words should satisfy-familiarity, phonetic dissimilarity, normal sampling of
English language, and homogeneity (audibility)
-36 two syllable words (spondaic words/spondees-airplane, toothbrush, sidewalk, hotdog, etc.)
*aka Speech Reception Threshold
MCL: Most Comfortable Loudness Level - CORRECT ANSWER - -intensity level that a
person perceives as comfortable to listen to
, -Stimulus is cold running speech (informative but non-emotional recorded at constant level)
-usually 40-50dB sensation level
-can be slightly hard for patient to identify, so results can vary 5-10dB on the high or low side, so
bracketing method used to find
-found monaurally, binaurally, or in sound field
MCL Purpose - CORRECT ANSWER - to determine the best level for the patient to hear
and understand speech (or, intensity level that a person perceives as comfortable to listen to (not
too soft or loud)
-most often used in evaluation of hearing aids
MCL Method - CORRECT ANSWER - -bracketing method used to find (can be hard for
patient to identify, so results can vary 5-10dB on the high or low side) (bracket until 3 correct
responses have been obtained at a given level)
-after instructions, start bracketing level by starting with stimulus below comfortable listening
level (too soft-usually 40 dB SL or 40 dB above SRT)-instruct patient to raise thumb when needs
to be increased
-continue cold running speech and quickly increase in 5dB steps until speech presented is above
threshold but just below uncomfortable level
-thumb down for softer, decrease speech in 10 dB until comfotable (forced choice method)
-OR, loudness chart use (1-7)
Loudness Discomfort Level (LDL) - CORRECT ANSWER - -the point where the speech
becomes uncomfortably loud
-usually 100-110 dB HL in normal hearing patients
-stimulus is cold running speech
-hearing losses don't necessarily extend this
*aka UCL (uncomfortable loudness level), ULCL (upper level of comfortable listening), ULC
(upper level comfort), HCL (highest comfort level)
LDL Purpose - CORRECT ANSWER - to determine the point where no further loudness
will be accepted by the patient