SHS 485 FINAL EXAM STUDY
GUIDE | QUESTIONS AND
ANSWERS | 2026 UPDATE WITH
LATEST MOCK PRACTICE SET
150 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
SHS 485 FINAL EXAM STUDY GUIDE | QUESTIONS AND ANSWERS | 2026 UPDATE WITH COMPLETE
SOLUTIONS - ASU.. It contains 150 carefully selected questions that reflect the most current exam content and
testing strategies. Each question is accompanied by a correct answer and a detailed rationale that explains the
underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 150 Questions
Foundations - Application - SHS 485 Study Guide AND 2026 Update WITH Complete Solutions - ASU
Speech AND Hearing Science SHS 485 Undergraduate YEAR 4 / Graduate
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Foundations OF Health AND 1-25 Hearing, Speech, Likely, Perception, Clinician
Wellness
Health Promotion AND 26-50 Communication, Disorder, Speech, Language, Severe
Disease Prevention
Healthcare Systems AND 51-75 Aphasia, Consistent, Speech, Comprehension, Finding
Policy
Ethical AND Legal Issues IN 76-100 Hearing, Voice, Study, Finding, Likely
Healthcare
Communication AND 101-125 Speech, Reduced, Likely, Directly, Consistent
Interprofessional
Collaboration
Evidence-based AND 126-150 Speech, Language, Child, Disorder, Hearing
Research
TOTAL 150 All questions include answers and detailed rationales
,Section A - Foundations OF Health AND Wellness
Q1.
In a double-blind experiment, listeners are presented with a steady vowel /a/ and a
whispered /a/. Brainstem frequency-following responses (FFRs) are recorded. Which of
the following best predicts the FFR difference between the two conditions?
A. The FFR will show reduced B. The FFR will be identical because the
phase-locking to the fundamental frequency spectral envelope is the same.
(F0) in the whispered condition due to
absence of voicing.
C. The FFR will show enhanced amplitude D. The FFR will show a shift in the dominant
in the whispered condition due to increased response frequency from F0 to the first
aperiodic energy. formant (F1) in the whispered condition.
Correct: A - The FFR will show reduced phase-locking to the fundamental frequency (F0)
in the whispered condition due to absence of voicing.
Rationale:The FFR primarily reflects phase-locked neural activity to the periodic voice pitch
(F0). Whispered speech lacks periodic voicing, so the FFR's F0 encoding is markedly
reduced. The spectral envelope (formants) is preserved but not encoded as a steady-state
FFR. Thus, A is correct; the others misrepresent FFR generation.
Q2.
A clinical trial tests a new hearing aid algorithm that applies frequency compression to
high-frequency sounds. Which of the following best explains why this algorithm may
improve speech recognition for listeners with severe high-frequency hearing loss?
A. It shifts high-frequency information to B. It amplifies high frequencies to overcome
lower frequencies where residual hearing is recruitment, restoring normal basilar
better, preserving temporal fine structure. membrane mechanics.
C. It reduces the upward spread of masking D. It increases the number of audible
by filtering out low-frequency noise. high-frequency channels by widening the
critical bands.
Correct: A - It shifts high-frequency information to lower frequencies where residual
hearing is better, preserving temporal fine structure.
Rationale:Frequency compression lowers high-frequency cues (e.g., fricative information)
into regions of better residual hearing, making them audible. It does not restore cochlear
mechanics (B) or directly reduce masking (C). It may distort temporal fine structure, but the
primary benefit is audibility of shifted cues, so A is correct.
Page 3
, Section A - Foundations OF Health AND Wellness
Q3.
Which of the following best describes the primary role of the medial olivocochlear (MOC)
efferent system in hearing?
A. It enhances the sensitivity of outer hair B. It reduces cochlear amplification via outer
cells to low-level sounds, improving hair cell inhibition, improving frequency
threshold detection. selectivity in noise.
C. It transmits auditory signals from the D. It regulates blood flow to the stria
cochlea to the superior olivary complex for vascularis, maintaining endocochlear
sound localization. potential.
Correct: B - It reduces cochlear amplification via outer hair cell inhibition, improving
frequency selectivity in noise.
Rationale:MOC efferents synapse on outer hair cells and release acetylcholine, causing
hyperpolarization and reducing electromotility, which decreases cochlear amplification. This
improves dynamic range and signal-in-noise processing. It does not enhance sensitivity (A) or
transmit afferent signals (C); it has no direct role in blood flow (D).
Q4.
A researcher measures distortion product otoacoustic emissions (DPOAEs) in a
participant with normal audiogram but reported difficulty understanding speech in noise.
Which finding would most likely indicate cochlear dysfunction not captured by pure-tone
thresholds?
A. Reduced DPOAE amplitude at 2f1-f2 for B. Absent DPOAEs at all frequencies, with
high-frequency f2, with normal thresholds at normal audiogram and tympanogram.
those frequencies.
C. Elevated DPOAE thresholds (input/output D. Normal DPOAE amplitudes but abnormal
functions) only at frequencies with hearing contralateral suppression of DPOAEs,
loss >25 dB HL. indicating efferent dysfunction.
Correct: D - Normal DPOAE amplitudes but abnormal contralateral suppression of
DPOAEs, indicating efferent dysfunction.
Rationale:Contralateral suppression of DPOAEs reflects MOC efferent function, which is
important for listening in noise. Abnormal suppression with normal DPOAE amplitude and
audiogram suggests selective efferent dysfunction, consistent with the patient's complaint.
Reduced amplitude at high frequencies (A) would likely correlate with threshold elevation.
Absent DPOAEs (B) would indicate outer hair cell loss, usually with threshold shift. Elevated
thresholds (C) typically accompany hearing loss.
Page 4
GUIDE | QUESTIONS AND
ANSWERS | 2026 UPDATE WITH
LATEST MOCK PRACTICE SET
150 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
SHS 485 FINAL EXAM STUDY GUIDE | QUESTIONS AND ANSWERS | 2026 UPDATE WITH COMPLETE
SOLUTIONS - ASU.. It contains 150 carefully selected questions that reflect the most current exam content and
testing strategies. Each question is accompanied by a correct answer and a detailed rationale that explains the
underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 150 Questions
Foundations - Application - SHS 485 Study Guide AND 2026 Update WITH Complete Solutions - ASU
Speech AND Hearing Science SHS 485 Undergraduate YEAR 4 / Graduate
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Foundations OF Health AND 1-25 Hearing, Speech, Likely, Perception, Clinician
Wellness
Health Promotion AND 26-50 Communication, Disorder, Speech, Language, Severe
Disease Prevention
Healthcare Systems AND 51-75 Aphasia, Consistent, Speech, Comprehension, Finding
Policy
Ethical AND Legal Issues IN 76-100 Hearing, Voice, Study, Finding, Likely
Healthcare
Communication AND 101-125 Speech, Reduced, Likely, Directly, Consistent
Interprofessional
Collaboration
Evidence-based AND 126-150 Speech, Language, Child, Disorder, Hearing
Research
TOTAL 150 All questions include answers and detailed rationales
,Section A - Foundations OF Health AND Wellness
Q1.
In a double-blind experiment, listeners are presented with a steady vowel /a/ and a
whispered /a/. Brainstem frequency-following responses (FFRs) are recorded. Which of
the following best predicts the FFR difference between the two conditions?
A. The FFR will show reduced B. The FFR will be identical because the
phase-locking to the fundamental frequency spectral envelope is the same.
(F0) in the whispered condition due to
absence of voicing.
C. The FFR will show enhanced amplitude D. The FFR will show a shift in the dominant
in the whispered condition due to increased response frequency from F0 to the first
aperiodic energy. formant (F1) in the whispered condition.
Correct: A - The FFR will show reduced phase-locking to the fundamental frequency (F0)
in the whispered condition due to absence of voicing.
Rationale:The FFR primarily reflects phase-locked neural activity to the periodic voice pitch
(F0). Whispered speech lacks periodic voicing, so the FFR's F0 encoding is markedly
reduced. The spectral envelope (formants) is preserved but not encoded as a steady-state
FFR. Thus, A is correct; the others misrepresent FFR generation.
Q2.
A clinical trial tests a new hearing aid algorithm that applies frequency compression to
high-frequency sounds. Which of the following best explains why this algorithm may
improve speech recognition for listeners with severe high-frequency hearing loss?
A. It shifts high-frequency information to B. It amplifies high frequencies to overcome
lower frequencies where residual hearing is recruitment, restoring normal basilar
better, preserving temporal fine structure. membrane mechanics.
C. It reduces the upward spread of masking D. It increases the number of audible
by filtering out low-frequency noise. high-frequency channels by widening the
critical bands.
Correct: A - It shifts high-frequency information to lower frequencies where residual
hearing is better, preserving temporal fine structure.
Rationale:Frequency compression lowers high-frequency cues (e.g., fricative information)
into regions of better residual hearing, making them audible. It does not restore cochlear
mechanics (B) or directly reduce masking (C). It may distort temporal fine structure, but the
primary benefit is audibility of shifted cues, so A is correct.
Page 3
, Section A - Foundations OF Health AND Wellness
Q3.
Which of the following best describes the primary role of the medial olivocochlear (MOC)
efferent system in hearing?
A. It enhances the sensitivity of outer hair B. It reduces cochlear amplification via outer
cells to low-level sounds, improving hair cell inhibition, improving frequency
threshold detection. selectivity in noise.
C. It transmits auditory signals from the D. It regulates blood flow to the stria
cochlea to the superior olivary complex for vascularis, maintaining endocochlear
sound localization. potential.
Correct: B - It reduces cochlear amplification via outer hair cell inhibition, improving
frequency selectivity in noise.
Rationale:MOC efferents synapse on outer hair cells and release acetylcholine, causing
hyperpolarization and reducing electromotility, which decreases cochlear amplification. This
improves dynamic range and signal-in-noise processing. It does not enhance sensitivity (A) or
transmit afferent signals (C); it has no direct role in blood flow (D).
Q4.
A researcher measures distortion product otoacoustic emissions (DPOAEs) in a
participant with normal audiogram but reported difficulty understanding speech in noise.
Which finding would most likely indicate cochlear dysfunction not captured by pure-tone
thresholds?
A. Reduced DPOAE amplitude at 2f1-f2 for B. Absent DPOAEs at all frequencies, with
high-frequency f2, with normal thresholds at normal audiogram and tympanogram.
those frequencies.
C. Elevated DPOAE thresholds (input/output D. Normal DPOAE amplitudes but abnormal
functions) only at frequencies with hearing contralateral suppression of DPOAEs,
loss >25 dB HL. indicating efferent dysfunction.
Correct: D - Normal DPOAE amplitudes but abnormal contralateral suppression of
DPOAEs, indicating efferent dysfunction.
Rationale:Contralateral suppression of DPOAEs reflects MOC efferent function, which is
important for listening in noise. Abnormal suppression with normal DPOAE amplitude and
audiogram suggests selective efferent dysfunction, consistent with the patient's complaint.
Reduced amplitude at high frequencies (A) would likely correlate with threshold elevation.
Absent DPOAEs (B) would indicate outer hair cell loss, usually with threshold shift. Elevated
thresholds (C) typically accompany hearing loss.
Page 4
