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Background: Free school breakfast programmes (SBPs) exist in a number of high-income countries, but their effects on educational outcomes have rarely been evaluated in randomised controlled trials., Methods: A 1-year stepped-wedge, cluster randomised controlled trial was undertaken in 14 New Zealand schools in low socioeconomic resource areas. Participants were 424 children, mean age 9±2 years, 53% female. The intervention was a free daily SBP. The primary outcome was children's school attendance. Secondary outcomes were academic achievement, self-reported grades, sense of belonging at school, behaviour, short-term hunger, breakfast habits and food security., Results: There was no statistically significant effect of the breakfast programme on children's school attendance. The odds of children achieving an attendance rate <95% was 0.76 (95% CI 0.56 to 1.02) during the intervention phase and 0.93 (95% CI 0.67 to 1.31) during the control phase, giving an OR of 0.81 (95% CI 0.59 to 1.11), p=0.19. There was a significant decrease in children's self-reported short-term hunger during the intervention phase compared with the control phase, demonstrated by an increase of 8.6 units on the Freddy satiety scale (95% CI 3.4 to 13.7, p=0.001). There were no effects of the intervention on any other outcome., Conclusions: A free SBP did not have a significant effect on children's school attendance or academic achievement but had significant positive effects on children's short-term satiety ratings. More frequent programme attendance may be required to influence school attendance and academic achievement., Trial Registration: Australian New Zealand Clinical Trials Registry (ANZCTR)-ACTRN12609000854235.

Evidence from a large-scale study of 11-year olds in Britain suggests that ambidextrous individuals may be disadvantaged in tests of verbal, nonverbal, reading, and mathematical skills relative to right- and left-handers, but this basic finding was not replicated in another study of younger boys in Germany. Here, we present data based on a television show in which members of the public were given an IQ test. Some individuals were also asked to state whether they wrote with the left hand, right hand, or either hand. The data support the earlier finding that ambidextrous individuals perform more poorly than left- or right-handers, especially on subscales measuring arithmetic, memory, and reasoning, and extend that finding to adults.

Background: Research into teacher expectations has shown that these have an effect on student achievement. Some researchers have explored the impact of various student characteristics on teachers' expectations. One attribute of interest is ethnicity., Aims: This study aimed to explore differences in teachers' expectations and judgments of student reading performance for Maori, Pacific Island, Asian and New Zealand European students. A further objective was to compare teacher expectations and judgments with actual student achievement., Sample: The participants were 540 students of 21 primary teachers in Auckland schools. Of these students, 261 were New Zealand European, 88 were Maori, 97 were Pacific Island and 94 were Asian., Methods: At the beginning of the year, the teachers completed a survey related to their expectations for their students' achievement in reading and, at the end of the year, they judged the reading levels their students had actually achieved. The survey data were compared with running record data., Results: Teachers' expectations for students in reading were significantly higher than actual achievement for all ethnic groups other than Maori. Maori students' achievement was similar to that of the other groups at the beginning of the year but, by the end of the year, they had made the least gains of all groups., Conclusions: Sustaining expectation effects are one explanation for Maori students' limited progress. For Pacific Island, Asian and New Zealand European students, positive self-fulfilling prophecies may be operating. Future research could investigate the learning opportunities provided to these ethnic groups and the relationship of these to teachers' expectations.