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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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Peer reviewed Peer reviewed
ERIC Number: EJ436498
Record Type: CIJE
Publication Date: 1991
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0009-3920
Infant Temperament and Genetics: An Objective Twin Study of Motor Activity Level.
Saudino, Kimberly J.; Eaton, Warren O.
Child Development, v62 n5 p1167-74 Oct 1991
The activity level of 60 pairs of infant twins was measured for 2 days. Differences in activity level for monozygotic and dizygotic twins, as indicated by motion recorders and parent ratings, showed evidence of genetic influences. (BC)
Descriptors: Foreign Countries, Genetics, Infants, Measurement Techniques, Motor Development, Personality, Physical Activity Level, Twins
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Manitoba; Rater Reliability