ERIC Number: ED030233
Record Type: RIE
Publication Date: 1967
Reference Count: N/A
Ability Structure and Loss of Vision. Research Series, Number 18.
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, arithmetic reasoning, memory, dexterity, kinesthetic memory, and tactual discrimination. Factor analysis indicated the following: blindness did not hinder the differentiation of mental abilities; tests which formed a visualization factor with the sighted determined a factor when performed tactually by the totally blind; and visual and spatial tests performed by the sighted, the first normally and the second tactually, formed two wholly independent factors. Also, for the totally blind, the mutually analogous tests measuring tactual and auditory discrimination sensitivities formed a factor on their own; for the partially sighted, the two correlated significantly negatively with each other. A larger proportion of the variance of test performances of the blind was due to the memory for meaningless, rather than meaningful, word pairs. (LE)
Descriptors: Arithmetic, Auditory Perception, Blindness, Cognitive Ability, Cognitive Processes, Etiology, Exceptional Child Research, Factor Structure, Kinesthetic Perception, Memory, Partial Vision, Psychomotor Skills, Sex Differences, Tactual Perception, Testing, Verbal Ability, Visual Impairments, Visually Handicapped Mobility
American Foundation for the Blind, 15 West 16th Street, New York, New York 10011 ($2.00)
Publication Type: N/A
Education Level: N/A
Sponsor: Public Health Service (DHEW), Arlington, VA. Home Economics Branch.; National Institutes of Health (DHEW), Bethesda, MD.
Authoring Institution: Institute of Occupational Health, Helsinki (Finland).