Effect of discussion on reduction of magnitude of Poggendorff illusion.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002657:Child Development; D003142:Communication; D006801:Humans; D007088:Illusions; D008297:Male; D008960:Models, Psychological; D009903:Optical Illusions; D011214:Practice, Psychological; D011582:Psychological Theory; D014705:Verbal Behavior; D014796:Visual Perception