Inequality in top performance: an examination of cross-country variation in excellence gaps across different levels of parental socioeconomic status

This article examines the extent to which parental socioeconomic status (SES) affects the likelihood of a child becoming a top-performing student, offering an international perspective by reporting this relationship in 31 developed countries. The impact of 3 important educational system characteristics (differentiation in terms of early tracking, standardisation, and private schooling) on the relationship between parental SES and top performance was determined. We employed multilevel logistic regression models on data from the Programme for International Student Assessment (PISA) 2015 (N?=?216,980) to reveal that children with low parental SES have a lower probability of becoming a top-performing student than those with high parental SES, although this association differs between countries. The negative relationship between a disadvantaged parental background and top performance was not affected by the educational system characteristics under investigation.     

Literacy for self-reliance: A critical exploration of Nyerere’s legacy in Tanzanian education policies

International Review of Education - The global movement to achieve the 17 Sustainable Development Goals (SDGs) of the United Nations’ 2030 Agenda rests on strengthening international...     

The prediction of first-grade reading achievement from WPPSI scores of preschool children

The purpose of this study was to measure the relationship between the WPPSI IQs and subtest scaled scores in preschool children and their reading achievement in grade one. Twenty-eight suburban middle class children were given the WPPSI at ages three to five and retested with the Gray Oral Reading Test near the end of first grade. Significant correlations between WPPSI IQs and reading were found. These correlations were similar in magnitude to those obtained between WPPSI IQs of kindergarten children and grade one reading. Further study of the predictive power of the Geometric Designs and Arithmetic subtests was suggested on the basis of correlations obtained between these subtests and later reading scores.     

Echocardiographic dimensions in trained and untrained 12-year-old boys and girls

The purpose of this study was to compare echocardiographically measured left ventricular (LV) dimensions of 85 trained 11-12-year-old athletes with 106 untrained children matched for skeletal age and fat-free mass. Training status for each group applied to the 3 years prior to the measurements. It was found that 12 min and 100 m runs demonstrated the superior athletic ability of the trained children, but there were no significant differences in LV internal diameters at diastole and systole, in LV posterior wall thickness, or in LV end-diastolic volume and LV mass. These data indicate that little difference occurs in LV size between moderately trained and untrained 11-12-year olds or between boys and girls matched for fat-free mass and skeletal age. It is also evident that consistent but moderate training during late pre-adolescence has little effect on LV development.     

Effect of glucose polymer ingestion on energy and fluid balance during exercise

Nine male triathletes were studied during 160 min of exercise at 65% VO2 max on two occasions to examine the effect of glucose polymer ingestion on energy and fluid balance. During one trial they received 200 ml of a 10% glucose polymer solution at 20 min intervals during exercise (CHO), while in the other they received an equal volume of a sweet placebo (CON). On average, blood glucose levels (CON = 4.2 +/- 0.2 mmol l-1, CHO = 4.8 +/- 0.1, mean +/- S.E.) and respiratory exchange ratios (CON = 0.84 +/- 0.01, CHO = 0.87 +/- 0.01) during exercise were higher (P less than 0.05) as a result of the glucose polymer ingestion. There were no differences between trials, however, in the estimated plasma volume changes during exercise. Exercise time to exhaustion at an intensity corresponding to 110% VO2 max, performed 5 min after the submaximal exercise, was not influenced by glucose polymer ingestion. Relative to a control exercise bout conducted without prior exercise, however, sprint performance and postexercise blood lactate accumulation were impaired in both trials. It is concluded that glucose polymer ingestion maintains blood glucose levels and a high rate of carbohydrate oxidation during prolonged exercise, without compromising fluid balance.