Nancy Bayley

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Bayley, Nancy

(1899–  ) psychologist; born in The Dalles, Ore. She studied at the University of Iowa, then joined the University of California: Berkeley, where she directed the Berkeley Growth Study. This 40-year longitudinal study measured mental and motor development in 74 subjects from infancy into adulthood. She published four books and research aids, including the Bayley Scales of Infant Development (1969).
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Administration of the Bayley Scales of Infant Development occurred during the first and third observation sessions (CA=31 and 40 months, respectively).
Reliability and validity are well-established and described in detail in Bayley Scales of Infant Development, Second Edition Manual (Bayley, 1993).
The Bayley Scales of Infant Development include a Mental scale and a Motor scale.
At 18 months of age, infants in the group supplemented with DHA and AA demonstrated a mean increase of 7 points on the Mental Development Index (MDI) of the Bayley Scales of Infant Development II as compared to infants fed a non-supplemented formula.
Two studies that examined the effects of prenatal exposure to MeHg in infancy linked that exposure to poorer psychomotor function on the Bayley Scales of Infant Development (BSID) at 30 and 36 months, respectively (Davidson et al.
The Lemmers' abstract showed cerebral regional oxygen saturation (rSO2) values on the first day of birth had a statistically significant correlation with the Mental and Pyschomotor Development Indices of the Bayley Scales of Infant Development.
More specifically, a low free thyroxine at 2 and 4 weeks was associated with poorer attention skills at 3 months of corrected age as assessed by the Bayley Scales of Infant Development, Second Edition.
Parents answered questions about their children's appetite, BMI, and dietary habits and completed a battery of psychological assessment tests that included the Children's Eating Behavior Inventory and the Bayley Scales of Infant Development.
The Early Social Communication Scales, the Bayley Scales of Infant Development, and the physical measurements, in that order, were administered after one year.
The most widely used nationally standardized test of cognitive ability for infants and toddlers is the Mental Scale of the Bayley Scales of Infant Development (BSID) (Bayley, 1969).
Both the index child and the second child were examined at age 15 months with the Bayley Scales of Infant Development II.