Rotations on WPPSI Geometric and Block Design subtests at four, five, and six years.
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D005556:Form Perception; D006801:Humans; D007361:Intelligence Tests; D008297:Male; D008960:Models, Psychological; D009949:Orientation; D011594:Psychometrics