Orientation and Mobility Study Set Questions with
Correct Answers
AER
Association for Education and Rehabilitation of the Blind and Visually Impaired
COMSTAC report
1966 Commission on Standards and Accreditation of Services for the Blind report
recommending standards for service programs and an organization of voluntary
accreditation based on these standards
AFB
American Foundation for the Blind
IMC
International Mobility Conference
ACVREP
Academy for Certification of Vision Rehabilitation and Educational Professionals
First 6 O&M professionals
John Malamazian, Stanley Suterko, Alfred D Corbett, Edward Thuis, Lawrence Blaha,
and Edward Mees 1947
AFB
American Foundation for the Blind
Boston College
1st university program 1960
Sir Frances Campbell
1860- experiments with long cane for "foot travel" at Perkins
The Seeing Eye
1929- first dog guide school in US
Valley Forge Army Hospital
1944- Hoover and long cane mobility techniques called "foot travel"
C Warren Bledsoe
Orienter from Valley Forge who went 1st to teach Hoover method at Dibble Army
General Hospital (1945)- then at the VA Hines Rehab Center in 1947
Russell C Williams
1948- blind chief of Hines Blind Unit
The Long Cane
1952 video produced by the VA to inform about the Hoover Method
Father Thomas J Carroll
1953 Catholic Guild for the Blind mounts Gloucester conference to define the role and
training of mobility instructors (unsuccessful)
Mary E Switzer
1954- director of Office of Voc Rehab helps with Voc Rehab Act to support demo grants
to help prepare O&M specialists.
Dorothy Eustis
Mother of the Dog Guide movement; established The Seeing Eye in 1929
Avon Program
, "Facial Vision" / obstacle perception for Army WWII was Blinded vets; surgeon general/
President Roosevelt/ Col Vail. Led to training the Hoover method at Dibble Army
Hospital
CEC
Council for Exceptional Children
JVIB
Journal of Visual Impairment and Blindness
Sound propagation
A disturbance in the medium sound travels through
Rarefraction
An area where the displaced particles in a medium are spread out
Compression
An area where the displaced particles are closer together
Elasticity
A medium's tendency to resist change and return to its original state
intensity of sound
Perceived as loudness- related to the density of compressions and amplitude of particle
vibration
Frequency
Perceived as pitch- the rate of compressions and rarefactions per second (Hz)
Wavelength
Distance covered by one complete cycle of a sound wave. High frequency= short
wavelength; low frequency = long wavelengths
noise cancelling
Tones that are out of phase are used to cancel sounds
Baffle
An obstacle to sound energy that can either absorb, reflect, refract, or diffract the sound
energy
Reflection
The bouncing back of a wave when it hits a surface through which it cannot pass.
Absorption
When sound energy is dissipated as heat
Sound shadow
an area of reduced sound intensity around the ear farther away from where a sound
originates
Diffraction
Scattering of energy around a baffle
Refraction
When a sound is forces to change its direction of propagation because of a change in
speed as it passes through a baffle
0 dB HL
Sound pressure level needed for the average person with normal hearing to detect a
test signal 50% of the time
Pitch
A tone's experienced highness or lowness; depends on frequency.
OU
Correct Answers
AER
Association for Education and Rehabilitation of the Blind and Visually Impaired
COMSTAC report
1966 Commission on Standards and Accreditation of Services for the Blind report
recommending standards for service programs and an organization of voluntary
accreditation based on these standards
AFB
American Foundation for the Blind
IMC
International Mobility Conference
ACVREP
Academy for Certification of Vision Rehabilitation and Educational Professionals
First 6 O&M professionals
John Malamazian, Stanley Suterko, Alfred D Corbett, Edward Thuis, Lawrence Blaha,
and Edward Mees 1947
AFB
American Foundation for the Blind
Boston College
1st university program 1960
Sir Frances Campbell
1860- experiments with long cane for "foot travel" at Perkins
The Seeing Eye
1929- first dog guide school in US
Valley Forge Army Hospital
1944- Hoover and long cane mobility techniques called "foot travel"
C Warren Bledsoe
Orienter from Valley Forge who went 1st to teach Hoover method at Dibble Army
General Hospital (1945)- then at the VA Hines Rehab Center in 1947
Russell C Williams
1948- blind chief of Hines Blind Unit
The Long Cane
1952 video produced by the VA to inform about the Hoover Method
Father Thomas J Carroll
1953 Catholic Guild for the Blind mounts Gloucester conference to define the role and
training of mobility instructors (unsuccessful)
Mary E Switzer
1954- director of Office of Voc Rehab helps with Voc Rehab Act to support demo grants
to help prepare O&M specialists.
Dorothy Eustis
Mother of the Dog Guide movement; established The Seeing Eye in 1929
Avon Program
, "Facial Vision" / obstacle perception for Army WWII was Blinded vets; surgeon general/
President Roosevelt/ Col Vail. Led to training the Hoover method at Dibble Army
Hospital
CEC
Council for Exceptional Children
JVIB
Journal of Visual Impairment and Blindness
Sound propagation
A disturbance in the medium sound travels through
Rarefraction
An area where the displaced particles in a medium are spread out
Compression
An area where the displaced particles are closer together
Elasticity
A medium's tendency to resist change and return to its original state
intensity of sound
Perceived as loudness- related to the density of compressions and amplitude of particle
vibration
Frequency
Perceived as pitch- the rate of compressions and rarefactions per second (Hz)
Wavelength
Distance covered by one complete cycle of a sound wave. High frequency= short
wavelength; low frequency = long wavelengths
noise cancelling
Tones that are out of phase are used to cancel sounds
Baffle
An obstacle to sound energy that can either absorb, reflect, refract, or diffract the sound
energy
Reflection
The bouncing back of a wave when it hits a surface through which it cannot pass.
Absorption
When sound energy is dissipated as heat
Sound shadow
an area of reduced sound intensity around the ear farther away from where a sound
originates
Diffraction
Scattering of energy around a baffle
Refraction
When a sound is forces to change its direction of propagation because of a change in
speed as it passes through a baffle
0 dB HL
Sound pressure level needed for the average person with normal hearing to detect a
test signal 50% of the time
Pitch
A tone's experienced highness or lowness; depends on frequency.
OU
