Sentences with phrase «statistical differences between the schools»

After this yearlong effort, the authors found stark statistical differences between the schools that had participated versus those that hadn't.

Not exact matches

Translation: many of the schools are given a ranked number, even though in a good deal of cases there is no statistical basis for the difference between one EMBA program and another.

The researchers also point out there were 1290 unique school and grade combinations in the study sample — an average of 40 students per combination — which meant it «lacked statistical power to find significant differences between treatment conditions or grade levels».

One very recent study, using sophisticated statistical techniques to summarize dozens of analyses across many states and cities, found that charter schools generally outperform traditional public schools in math, with little difference between the two sectors in reading.

This is the exactly what would happen with the statistical phenomenon of «regression towards the mean» — it indicates a serious flaw in the data analysis and interpretation, and suggests that there is no real difference between the two types of schools.

However, there are analytic and statistical strategies that enable you to control for these differences, that allow you to better isolate the true relationship between school choice and student achievement.

The authors assess how different covariates contribute to improving the statistical power of a randomization design and examine differences between math and reading tests; differences between test types (curriculum - referenced tests versus norm - referenced tests); and differences between elementary school and secondary school, to see if the test subject, test type, or grade level makes a large difference in the crucial design parameters.

The internal consistency of the CBCL in our sample, specifically the School subscale, was somewhat low, reducing statistical power (Bacon, 2004); however, our sample size and matched design provided enough power to uncover as statistically significant even small differences between the groups on this measure.