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Jacobsen, Karl; Grottland, Havar; Flaten, Magne Arve – American Journal on Mental Retardation, 2001
Assessment of visual acuity, using Teller Acuity Cards, was combined with observations of behavioral state to indicate central nervous system activation in 24 individuals with mental retardation. Results indicate that forced-choice preferential-looking technique can be used to test visual acuity in this population unless the participant is drowsy.…
Descriptors: Children, Evaluation Methods, Mental Retardation, Neurology
Peer reviewedFriedlander, Bernard Z.; And Others – Exceptional Children, 1974
Descriptors: Children, Deaf Blind, Exceptional Child Research, Mental Retardation
Peer reviewedO'Dell, Cynthia D.; And Others – Mental Retardation, 1993
A vision screening program established at a facility for 271 individuals with severe or profound mental retardation used the acuity card procedure as its measure. The procedure was found to be a valid and reliable screening tool for this population. A few residents had good visual acuities, whereas the acuities of others were poor. (JDD)
Descriptors: Adults, Children, Institutionalized Persons, Program Effectiveness
Peer reviewedSchanel-Klitsch, E. – Journal of Visual Impairment and Blindness, 1992
The visual acuity of 8 children, aged 2-7, with low vision and multiple handicaps was effectively tested using the Teller Acuity Cards and a preferential-looking procedure with operant modification. This inexpensive procedure was found to be suitable for at-home testing by itinerant vision specialists in developing countries or rural areas. (DB)
Descriptors: Cost Effectiveness, Multiple Disabilities, Operant Conditioning, Outreach Programs
