Reversal and rotation errors by normal and retarded readers.
D000124:Achievement; D000367:Age Factors; D001538:Bender-Gestalt Test; D002648:Child; D002657:Child Development; D004410:Dyslexia / Q000175:diagnosis*; D005556:Form Perception; D006801:Humans; D007361:Intelligence Tests; D010469:Perceptual Distortion; D011336:Probability; D011932:Reading; D014956:Writing