6 Ways Parlay Incorporates Best Practices from Visible Learning®
What is Visible Learning®?
Combining over 60,000 studies from 300 million students, John Hattie’s seminal work on Visible Learning® is the most comprehensive study ever done in education. It analyzes over 250 educational “influences” and how they affect student achievement. The influences they evaluated included everything from class sizes to household income and dozens of instructional strategies that teachers can use in the classroom.
The end result of this study was a list that ranked various factors and techniques from lowest impact to highest impact on learning outcomes. The graph below shows a summary of Visible Learning®. The measured effect on learning outcomes is on the X axis and the number of influences that fall into that effect size on the Y axis. Some influences had negative effects (red), but most influences have positive effects (yellow and green). Some influences had above-average effects on learning outcomes (green).
The results of the study are communicated through a statistical value called Cohen’s d score. In short, this number ranks the effectiveness of a particular influence by comparing the difference between two mean values: the mean value of student progress at the beginning of the year, and the mean value of student progress at the end of the year when this particular influence is accounted for.
The average score was d = 0.4 – representing one year of average progress in learning outcomes for a typical student. A score above d = 0.4 means that this particular influence produces faster than average progression and below d = 0.4 means that this particular influence produces slower than average progression. Any score that is negative means that this particular influence actually has an adverse effect on student learning outcomes. The chart below shows the number of influences in each of the scored categories.
Visible Learning® is a trademark of Corwin in the U.S. and other countries.
This is an independent post and is in no way affiliated with or endorsed by Corwin.