Search results
Results from the WOW.Com Content Network
Visible learning is a meta-study that analyzes effect sizes of measurable influences on learning outcomes in educational settings. [1] It was published by John Hattie in 2008 and draws upon results from 815 other Meta-analyses. The Times Educational Supplement described Hattie's meta-study as "teaching's holy grail". [2]
Hattie advised the Fifth National Government of New Zealand on national learning standards and performance-related pay for teachers. [2] Visible Learning has come under criticism for mathematical flaws in the calculation of effect sizes and misleading presentation of meta-analyses in the book. [7]
In statistics, an effect size is a value measuring the strength of the relationship between two variables in a population, or a sample-based estimate of that quantity. It can refer to the value of a statistic calculated from a sample of data, the value of a parameter for a hypothetical population, or to the equation that operationalizes how statistics or parameters lead to the effect size ...
While historical data-group plots (bar charts, box plots, and violin plots) do not display the comparison, estimation plots add a second axis to explicitly visualize the effect size. [28] The Gardner–Altman plot. Left: A conventional bar chart, using asterisks to show that the difference is 'statistically significant.'
Shenghua Wen, a 41-year-old Chinese national illegally living in Ontario, California, is accused of shipping guns and ammunition to North Korea.
A new study shows an extra 5 minutes of daily vigorous exercise helps control hypertension. The findings become more significant with an extra 10 and 20 minutes of heart-pumping physical activity ...
In other words, the correlation is the difference between the common language effect size and its complement. For example, if the common language effect size is 60%, then the rank-biserial r equals 60% minus 40%, or r = 0.20. The Kerby formula is directional, with positive values indicating that the results support the hypothesis.
Previously, the authors had shown that the use of levothyroxine in people with higher thyroid hormone levels had a negative effect on leg mass in older adults, in a study whose results appeared in ...