The investigation was undertaken to obtain data on the number of kindergarten, second, and seventh grade Ss classified as having color vision defects by the American Optical-Hardy, Rand, Rittler Test (AO-HRR) and two tests by S. Ishihara. Also studied was the ability of color vision defective and color normal Ss to utilize color as measured by the…

Studies of the etiological factors in reading disability and approaches, generally visual-perceptual, to the problem are presented. Krippner's study presents 15 causes of reading disability and reveals poor visual-perceptual skills as the most common cause. The Olson-Mitchell-Westberg study attempts to determine the effects of visual training upon…

This study was conducted in order to develop and evaluate a systematic screening method which could be used by counselors and school psychologists in the identification of first graders showing characteristics generally associated with learning disabilities. The study was conducted within three Title I schools in a large sourthern metropolitan…

This study endeavored to determine (1) the reliability with which selected individual tests of language, visual and auditory perception, and auditory-visual perceptual integration can be administered through group testing; (2) the decrease in administration and scoring time by using these instruments in a group manner, and (3) the relationships…