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| Etiology | 2 |
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| Adolescents | 1 |
| Arithmetic | 1 |
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| Juurmaa, Jyrki | 1 |
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Juurmaa, Jyrki – 1967
In the analysis of ability structure and loss of vision, 228 blind persons (153 male, 75 female) heterogenous in respect to chronological age, sex, degree of blindness, age at onset, and duration, were compared to sighted controls. A test battery was administered which included tests for verbal comprehension, mental arithmetic, spatial ability,…
Descriptors: Arithmetic, Auditory Perception, Blindness, Cognitive Ability
Download full textAmerican Foundation for the Blind, New York, NY. – 1962
THE FOLLOWING REPORTS CONCERNING RESEARCH WITH THE VISUALLY HANDICAPPED ARE CONTAINED IN THIS BULLETIN--"SELECTED IMPAIRMENTS BY ETIOLOGY AND ACTIVITY LIMITATION, UNITED STATES, JULY 1959-JUNE 1961,""AN EXPERIMENT USING REVISED STIMULUS PRESENTATION" BY S. KARP, "EXPERIMENTS IN TACTUAL PERCEPTION" BY S. KARP, "A STUDY OF BRAILLE CODE REVISIONS" BY…
Descriptors: Adolescents, Attitudes, Blindness, Braille
