Perceptual-motor skills, ability to conserve, and school readiness.
D002648:Child; D002657:Child Development; D002675:Child, Preschool; D004522:Educational Status; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D008297:Male; D009048:Motor Skills; D011581:Psychological Tests; D011582:Psychological Theory; D012574:Schools; D012737:Sex Factors; D013850:Thinking; D014796:Visual Perception