Two studies on cognitive performance in mentally retarded children are reported. In the first study, the Bayley Scales of Infant Development were administered to 56 mentally retarded children, aged 2 to 6, to determine the possibility of discerning subsets of items that form a developmental pattern of interrelated subscales, using the SCAMMO scale…

Analysis of effects of different starting points on the Bayley Scales of Infant Development II Mental Scale found that starting at the child's chronological age consistently inflated scores, whereas starting at the lowest item set skewed results in the opposite direction. Testing downward until all items are passed and upward until all items are…

This study investigated the cognitive and behavioral functions associated with iron deficiency anemia in infants and toddlers and the short-term effects of therapy on such behaviors. Subjects were 24 iron deficient and anemic infants, 9 to 26 months old. The subjects were randomly assigned to a treatment or control group. The Bayley Scales of…

Down Syndrome children (N=229), aged 1-83 months, from Australia, Canada, and Germany were tested using the Bayley Scales of Infant Development. Test performances on the Bayley's Mental and Motor scales were not dissimilar, leading to the conclusion that young Down Syndrome children from different countries with relatively comparable standards of…

This study examined the moderating effect of low birth weight on the effectiveness of an early intervention program to improve cognitive, language and behavioral outcomes for children prenatally exposed to cocaine. Participants included 293 primarily minority, low SES children who were enrolled in the intervention during their first year and…

A study comparing family and group day care was conducted. Data were collected over a two-year period on 12 children in a Greensboro, N. C., family day care program and 10 children in the UNC-G Demonstration Center for Infant-Toddler Care, a group day care center. Results, which disproved many assumptions cited as advantages of family day care,…

Interactive behavior of 90 Israeli toddlers was observed with mothers and caregivers in one-on-one free play interactions. Children were examined with the Bayley Scales of Infant Development, and adults completed self-report measures. Observations were coded for both the quality of adult-child interactive behavior and for the quality of adults'…

Previous work by our group has shown that infant emotional vitality (EV), the lively expression of shared emotion both positive and negative, predicts cognitive and language abilities in toddlerhood. Specifically, infants who demonstrated a pattern of high emotional expression combined with high bids to their caregivers, fared significantly better…

Developmental rates and standard scores are examined for 56 infants in four gestational age groups by repeated measurements on the mental scale of the Bayley Scales of Infant Development. (Author/JMB)

We compared health status, anthropometric and psychological development of 123 children adopted before 18 months of age from China, East Asia (Vietnam, Taiwan, Thailand, South Korea, Cambodia), and Eastern Europe (mostly Russia). Data were collected close to the time of arrival, and 3 and 6 months later. Anthropometric measures included weight,…

When administered to 34 infants with handicaps, Bayley Scale mental age scores were an average of 2.1 months higher than Estimated Developmental Ages (EDA's) calculated from the Uzgiris and Hunt Scales. The EDA's were significantly and positively related to Bayley mental age, and sensorimotor play emerged as the best single correlate. (Author/JDD)

The Mayes Motor Free Compilation (MMFC) assesses mental ability in young (under age 2) children with motor disabilities. This study evaluated the concurrent validity of the MMFC by administering it and the Bayley Scales of Infant Development to normal children. Findings suggest that the MMFC provides a valid estimate of mental age, even without…

A set of 45 mental scale items from the Bayley Scales of Infant Development was administered by two testers to 33 nonambulatory, profoundly mentally retarded subjects. Bayley raw scores predicted success in conditioning programs, suggesting that this test is useful for educational programing. (Author/CL)

The repeated psychological assessment of 41 high-risk infants during the first 2 years of life using the Mental Scale of the Bayley Scales of Infant Development was investigated. Analyses indicated that the infants' cognitive functioning remained fairly stable over the 2 years, particularly from age 6 months on. (Author/JDD)

This study investigated the concurrent validity of the Mayes Motor Free Compilation (MMFC) using the mental scale of the Bayley Scales of Infant Development (BSID) as the criterion variable with 50 typically developing preschool-aged children. Results indicated that the MMFC and the BSID scores were significantly and positively correlated.…