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Smith, Philip A.; Marx, Ronald W. – Journal of Learning Disabilities, 1972
Evaluation of the Frostig Developmental Test of Visual Perception found that it measured a single general factor of perceptual organization which was weakly related to IQ and unrelated to reading ability. (KW)
Descriptors: Diagnostic Tests, Exceptional Child Research, Factor Analysis, Identification
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Bell, Sherry Mee; McCallum, R. Steve; Cox, Elizabeth A. – Journal of Learning Disabilities, 2003
Elementary and middle school children (n=105) completed measures of reading achievement and cognitive abilities. Factor analysis produced three empirically and theoretically derived factors, auditory processing, visual processing/speed, and memory. Together the three factors combined predicted 61 to 85% of the variance associated with different…
Descriptors: Auditory Perception, Cognitive Ability, Cognitive Processes, Disability Identification
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Watson, Charles S.; Kidd, Gary R.; Horner, Douglas G.; Connell, Phil J.; Lowther, Andrya; Eddins, David A.; Krueger, Glenn; Goss, David A.; Rainey, Bill B.; Gospel, Mary D.; Watson, Betty U. – Journal of Learning Disabilities, 2003
Standardized sensory, perceptual, linguistic, intellectual, and cognitive tests were administered to 470 entering first graders. Factor analysis found four factors, which were reading related skills, visual cognition, verbal cognition, and speech processing. Cluster analysis identified nine profiles. The strongest predictors of later reading and…
Descriptors: Academic Achievement, Beginning Reading, Cluster Analysis, Cognitive Processes