Children’s Hospital / National Institute / Symbol Library / /
Organization
Rehabilitation Research / U.S. Department of Education's office of Special Education and Rehabilitative Services / U.S. Department of Education / Federal government / National Institute on Disability / National Institute on Disability and Rehabilitation Research / /
Effects
of
Anima/on:
A
Comparison
of
Two
Graphic
Symbol
Sets
1,3Ralf
W.
Schlosser,
PhD,
2Koul,
R.
K.
PhD,
3Howard
Shane,
PhD,
3