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Peer reviewedHicks, Wanda M. – American Annals of the Deaf, 1979
A study involving eight youths and adults with retinitis pigmentosa (and only 20 degree visual field and hearing loss of at least 20 decibels) determined variance in the ability to perceive and comprehend visual stimuli presented by way of the manual modality when modifications were made in configuration, movement speed, movement size, and…
Descriptors: Deaf Blind, Exceptional Child Research, Hearing Impairments, Multiple Disabilities
Peer reviewedFriedlander, Bernard Z.; Knight, Marcia S. – American Journal of Mental Deficiency, 1973
Sixteen deaf-blind, retarded, preschool postrubella children (mean age 6 years) were tested in an operant procedure which allowed them to select preferred illumination feeback as reinforcement for operating a simple two-choice lever switch. (Author/MC)
Descriptors: Behavior Change, Deaf Blind, Exceptional Child Research, Multiple Disabilities
