The objective of this study was t0 determine the relationship between scores on McCarthy Scales of Children's Abilities (MSCA) and academic peU’ormance of school children. A total ofI12first and second graders aged 6 to 8 I/2 years old hom two primary schools in Kuala Lumpur, Malaysia were selected as subjects for this study. This selection was based on a random sampling stratyied proportionalhr according to school and sex. The MSCA was administered to 59 male and 53 female students. The test battery was translated from English to Malay and adapted to suit the local situation. Academic performance was measured using the mean percent of the total score on all the subjects (English, Malay, Mathematics and Islamic Religion) in the jinal examinations at the end of the year. T—test results indicated no signdicant dfference between MSCA scores and academic scores of maleandkmale students. The results revealed that all the scores on the MSCA and the General Cognitive Index were signyicantbr correlated with academic pejormance, The General Cognitive Index accounted for [0.4% ofthe variation in academic performance. T he findings appear to support that intelligence scores may be used to predict children 's academic performance in the early years of primary education.
This study aimed to determine the relationship between blood lead (BPb) concentrations and cognitive and physical development in school children. A total of 169 urban children and 100 industrial children of Malay ethnicity, in the age range of 6(1/2) to 8(1/2) years, were selected. BPb was determined using GF atomic absorption spectrophotometer. The mean cognitive score (102.55) of the children from the industrial area was significantly higher than that of the urban children (95.09; P < .001). However, no significant differences were found in the BPb levels between the 2 groups (industrial, 3.75 microg/dL; urban, 3.56 microg/dL). There was significant inverse correlation between BPb and cognitive scores for all children (P < .05). The cognitive scores for all children were influenced by BPb after adjustments (P < .05). The urban children had significantly better Weight for Height and Left Arm Circumference values than those from industrial area. There was no significant correlation between BPb and the anthropometric measurements. In conclusion, low BPb influenced the cognitive development, whereas physical development was not affected.