Sentences with phrase «large effects»

«Even small increases in speed have large effects on the force of impact.

Based on data from a post-student teaching survey, we find consistently strong evidence of large effects of being assigned to high versus low index placements, particularly in terms of teacher candidates» perceptions of the quality of instruction of their cooperating teachers and the quantity and quality of the coaching that they received.

Taken together the various teacher credentials exhibit quite large effects on math achievement, whether compared to the effects of changes in class size or to the socio - economics characteristics of students.

These surprisingly large effects are consistent with the hypothesis that the course reduced dropout rates and suggest that culturally relevant teaching, when implemented in a supportive, high - fidelity context, can provide effective support to at - risk students.

In each case, the estimates are precise enough to rule out modest to large effects.

However, educational policy is not solely concerned with benefit - cost ratios, but with also achieving large effects per child.

The rationale for such approval is that core instruction is used with all students, thus it has large effects.

«In some cases, these charter schools have quite large effects, such that attending one for three years produce test - score gains that are equivalent to the size of the U.S. black - white achievement gap,» said Sarah Cohodes, an assistant professor of education and public policy at Columbia University in a publication from Princeton University and the Brookings Institute.

This means that universal pre-K can be more easily scaled up to have truly large effects on the overall quality of the labor force of a state or of the nation, and thereby to have truly large effects on overall economic development.

Similarly, a large body of literature finds that professional development programs in general have mixed effects, but that some interventions have large effects.

There is robust evidence that the EITC has quite large effects on children's academic achievement and attainment, with potentially important consequences for later - life outcomes.

Recent research shows that variation in teacher quality has large effects on student performance.

We also find large effects for black male students assigned to black male teachers.

[350] Boston pre-kindergarten, which also operates for a full school day and school year, demonstrates large effects on children's language and math skills.

In other words, to make the very large effects disappear, you have to make either the very strong assumption that student learning has little effect on the U.S. economy or the equally strong assumption that teachers have little impact on students.

For example, in my own work with several colleagues, which was partially funded by IES, we demonstrated that providing low - and moderate - income families with streamlined personal assistance to complete the federal college financial aid application had large effects on college attendance and persistence.

For students who stay in the program, the data suggest that large effects accrue.

Because the average female scores only a little higher than the average male, however, the earlier translation of the scores generates implausibly large effects.

Much evidence suggests that school decisions about curricula (e.g., textbooks, instructional software, and the corresponding pedagogy) can have comparatively large effects on student achievement.

We also found relatively large effects for black students but only when our analysis weighted the state - year NAEP data by the corresponding enrollments of black students.

Second, the new wave of personalized learning draws on a set of instructional strategies that have shown particularly large effects on student achievement: feedback, peer tutoring, mastery learning, goal setting, and even direct instruction.

The second reason he cites is that spending induced by the courts might have large effects while spending not related to judicial rulings have small effects.

Indeed, my results confirm that a teacher's gender does have large effects on student test performance, teacher perceptions of students, and students» engagement with academic material.

Tellingly, the authors find large effects when state funds are used to increase institutional expenditures but virtually no effect when they are used for across - the - board reductions in sticker price.

The effect sizes at 2 h were 1.22 for full - fat milk, 1.37 for skimmed milk, 1.03 for ORS, and 0.87 for orange juice (all large to very large effects).

«Being active has large effects, and doing even a little bit is better than doing nothing.

These studies have identified hundreds of cis - regulatory and trans - regulatory SNPs with moderate to large effects on gene expression.

In clinical studies large effects produced by sham acupuncture were observed [4]--[6].

Projected changes in temperature will have large effects on how water enters Montana (e.g., as rain or snow), how it is distributed among major storage pools, and how it moves or changes from one component of the water cycle to another.

Variants with large effects on blood lipids and the role of cholesterol and triglycerides in coronary disease.

Loss of bird populations would have large effects on potential spreading of vegetation to new areas.

With its large sample size, this study had the power to find copy number variants with large effects that occur in more than 0.1 percent of schizophrenia cases.

We don't know yet whether you continue to get large effects if you turn down daf - 2 late in adulthood.

And how can such a tiny amount of change produce such large effects?

For this project, they and their teams are collaborating with engineers from MBARI to test new ways of adaptively sampling oceanographic features such as open - ocean eddies, swirling masses of water that move slowly across the Pacific Ocean, which can have large effects on ocean microbes.

Scientists at the University of York have discovered that very small chemical changes to dietary flavonoids cause very large effects when the plant natural products are tested for their impact on the human immune system.

«Botany and health: Very small chemical changes to dietary flavonoids cause very large effects on human immune system.»

«There often seem to be a few genes in the genome that have large effects, often on multiple things,» said Ole Seehausen, an evolutionary ecologist at the University of Bern in Switzerland.

«Our study demonstrates the potentially large effects behavioral research can have in providing crucially important win - win solutions for the economy and environment, by improving existing efficiency opportunities in the workplace,» Metcalfe said.

«There are no common variants with large effects,» says Lavinia Paternoster, a geneticist at the University of Bristol in the United Kingdom, who plans to work with Kayser in the future on finding more facial genes.

It also has large effects on weather outside the tropics, triggering and strengthening hurricanes, monsoons, and heat waves in higher latitudes.

Even before chaos theory was developed in the 20th century, it was clear to historians and physicists that small causes could lead to large effects.

Pinker says that the findings are a first step in demonstrating that intelligence relies on large numbers of genes, each with a tiny effect, rather than on single genes that have moderate or large effects, but which are so rare that none has yet been identified.

Together, roundworm and hookworm may affect as many as 800 million people worldwide, so could be having large effects on global demography, says Blackwell.

By contrast, recent studies in tropical fish have shown that fish larvae experience quite large effects from increased CO2, he said.

However, individual studies have been modest in size and lacking in statistical power to exclude even quite large effects on diabetes risk.

The 2 studies that did report separately for those who were breastfed for at least 1 year found relatively large effects.

The effect sizes at 4 h for cumulative urine output compared with still water were 1.04 for full - fat milk, 0.85 for skimmed milk, and 1.09 for ORS (all large effects), with an effect size of 0.65 for orange juice (a medium effect).

The effect sizes at 2 h were 1.22 for full - fat milk, 1.37 for skimmed milk, 1.03 for ORS, and 0.87 for orange juice (all large to very large effects).

It has had very large effects on the real economies of most countries.