title: Some variables affecting children's spatial conservation.
mesh_terms: D001538:Bender-Gestalt Test; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003071:Cognition; D003210:Concept Formation; D006801:Humans; D007361:Intelligence Tests; D009949:Orientation; D011581:Psychological Tests; D011582:Psychological Theory; D013028:Space Perception