Biomaterial Database

The growth and development of twins compared with singletons at ages 9 and 11. 1985

P A Silva, and B Crosado

The growth and development of 9 and 11-year old twins who have been studied at birth, and at ages 3, 5, and 7 years was compared with that of a large group of singletons. The twins were not significantly different to the singletons in language development, reading, spelling or Performance IQ. They remained significantly shorter, lighter and had smaller head circumferences. This difference was shown to have been fairly consistent from age 3. The twins had significantly lower Verbal and Full Scale IQ, but in view of a lack of disadvantage in educational progress this was not considered to be of any practical importance.

UI	MeSH Term	Description	Entries
D007361	Intelligence Tests	Standardized tests that measure the present general ability or aptitude for intellectual performance.	Mental Tests,Raven Test,Raven's Progressive Matrices,Intelligence Test,Mental Test,Raven Progressive Matrices,Ravens Progressive Matrices,Test, Intelligence,Test, Mental,Test, Raven
D007804	Language Development	The gradual expansion in complexity and meaning of symbols and sounds as perceived and interpreted by the individual through a maturational and learning process. Stages in development include babbling, cooing, word imitation with cognition, and use of short sentences.	Language Acquisition,Acquisition, Language,Development, Language
D011932	Reading	Acquiring information from text.
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002657	Child Development	The continuous sequential physiological and psychological maturing of an individual from birth up to but not including ADOLESCENCE.	Infant Development,Development, Child,Development, Infant
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000886	Anthropometry	The technique that deals with the measurement of the size, weight, and proportions of the human or other primate body.
D014427	Twins	Two individuals derived from two FETUSES that were fertilized at or about the same time, developed in the UTERUS simultaneously, and born to the same mother. Twins are either monozygotic (TWINS, MONOZYGOTIC) or dizygotic (TWINS, DIZYGOTIC).	Twin
D014706	Verbal Learning	Learning to respond verbally to a verbal stimulus cue.	Learning, Verbal,Learnings, Verbal,Verbal Learnings