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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
