Abstract. In the last century many studies have revealed the advantages of girls in reading and superiority of boys in science. However, the international tests detected no difference in science test results in the 21st century. The aim of the study was to find the sex effect size and variances in reading achievement in recent international studies
SummaryThis paper examines the relationship of the national IQs reported by Lynn & Vanhanen (2002, 2006) to national achievement in mathematics and science among 8th graders in 67 countries. The correlation between the two is 0·92 and is interpreted as establishing the validity of the national IQs. The correlation is so high that national IQs and educational achievement appear to be measures of the same construct. National differences in educational achievement are greater than differences in IQ, suggesting an amplifier effect such that national differences in IQs amplify differences in educational achievement. Controlling for national differences in IQ, slight inverse relationships of educational achievement are observed with political freedom, subjective well-being, income inequality, and GDP. However, public expenditure on education (as % of GDP) was not a significant predictor of differences in educational achievement.
Primary school students have difficulties with text comprehension, and therefore support from teachers via proper language teaching strategies is needed. The aim of the study was to determine the impact of language teaching strategies on students' reading outcomes and reading interest. In the current paper, two reading outcomes-vocabulary knowledge and understanding text-and students' interest in reading were considered. In the study, 220 Estonian-speaking primary school students and their native language teachers (N = 12) from 12 schools participated. The results revealed that interest in reading, vocabulary knowledge and text comprehension were positively correlated. Path analysis indicated that the strategy of developing reading interest had the strongest impact on both reading outcomes and students' reading interest. In addition, the strategy of developing vocabulary had a positive effect on students' vocabulary knowledge. Surprisingly, the strategies of teaching text comprehension and teaching grammar rules had negative effects on students' reading outcomes and reading interest. The findings emphasise the importance of proper usage of teaching strategies in primary school language lessons.
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