Content Quiz #1: Audiology, Prevalence of HL, Sound and Properties of Sound

Frequency is an objective measurement; the subjective correlate is __________. Amplitude is an objective measurement; the subjective correlate is _________.

pitch; loudness

The ability of a surface to interfere with the movement of a sound wave is called:

Resistance

In order to legally practice audiology,

State licensure is required in all states

Which of the following is NOT covered under the scope of practice for an audiologist?

Swallowing assessment

Worldwide, the number of individuals with hearing loss:

Is increasing as the population ages

Which of the following is NOT true?

A large percentage of deaf babies have deaf parents

Hearing loss is more prevalent in developing countries because:

Medical care is not readily available; many groups have cultural beliefs which may have interfere with seeking and accepting medical care

Reverberation

The way in which sound waves bounce off of or are absorbed by different surfaces

Constructive Interference

The way in which 2 of the same sounds waves double in amplitude when they are played at the same time

Impedance

The degree to which a surface prevents (or does not prevent) the flow of sound waves through it

Masking

The way in which one louder sound can make a softer sound unheard when both are played at the same time

Resonance

The way in a structure vibrates to a specific frequency

Cancellation

The way in which 2 of the same sound waves eliminate each other when they are 180 degrees out of phase

Inverse Distance Law

The doubling of sound when the distance is decreased by half

Resistance

The degree to which a surface prevents (or does not prevent) the flow of sound waves through it

Congenital

Hearing loss that is present at birth

Postlingual

Hearing loss after the development of speech and language

Progressive

Hearing loss that becomes worse over time

Otolaryngologist

A physician who specializes in ears, noses, and throats

Objective

Factual

Stable

Hearing loss that does not change over time

Subjective

Based upon feeling or opinions

Prelingual

Hearing loss before the development of speech and language

Acquired

Hearing loss that develops after birth from disease or injury

The current degree level needed to become an audiologist

Doctorate

Intensity is _________ and is measured in ________.

The amplitude of the wave form; decibels (dB)

The precedence effect is:

The ability of the brain to merge multiple sound waves into one perception

An audiologist studies:

Hearing

Which of these professionals are NOT exempted from audiology licensing?

Audiologist

Which of the following is NOT covered under the scope of practice for an audiologist?

Speech and language therapy for stuttering

Sine wave

Mathematical depiction of pure tone

Periodic wave forms

Speech or music

Compression/Condensation

A high concentration of molecules

Rarefaction

A low concentration of molecules

Frequency

Number of cycles per second

HL

The decibel scare used for testing the human ear

Aperiodic wave forms

Noise

SPL

The decibel scale used for measuring the exact pressure of a sound