Gender identity and its measurement in children.
D000367:Age Factors; D002657:Child Development; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007062:Identification, Psychological; D007223:Infant; D008297:Male; D011578:Psycholinguistics; D011594:Psychometrics; D012380:Role; D012649:Self Concept; D012723:Sex