COMD 5070 Exam 1 Questions and Correct
Answers/ Latest Update / Already Graded
4 Features of the scientific method
Ans: 1. Empirical - based on data 2. Deterministic - obeys
physical laws (not random) 3. Predictive - if you do this ... then
that will happen 4. Parsimonious - use the simplest explanation
possible
Why do SLP's use technology?
Ans: 1. overcome listener bias 2. consistent, reliable measure 3.
describe severity objectively 4. track progress 5. ASHA's focu s
on EBP 6. provide biofeedback to client 7. SLP need to know
normal and disordered physiology 8. Need to know what the
numbers represent
Pitch perception
Ans: order on a musical scale, subjective perception, can NOT
be measured with instruments, listener matches perceived pitch
to that of a pure tone.
Loudness perception
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Ans: a perceptual characteristic judged by a listener, can NOT
be measured by equipment, psychophysical scale links loudness
to intensity
Intensity
Ans: is measured in dB and intensity = amplitude
IL
Ans: Intensity Level
SPL
Ans: Sound Pressure Level
HL
Ans: Hearing Level
Loudness is measured with
Ans: a sound level meter (NO SUCH THING AS A LOUDNESS
METER)
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difference limens (DLs)
Ans: smallest detectable change in frequency, DLs increase
with stimulus frequency, as intensity decreases DLs become
larger
How many semitones are in one octave?
Ans: 12
Octave
Ans: is the doubling or the halving of frequency (400Hz base,
800 Hz an octave up, 200 Hz is an octave down)
How many semitones are in two octaves?
Ans: 24
voice range profile (VRP)
Ans: is computed using 10 frequencies. For each frequency the
speaker produces a soft sound and a loud sound. The results are
then plotted on a chart.
root mean square (RMS)
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