Here's a website worth sharing:

https://www.visiblelearningmetax.com/

It connects to the most current rankings from John Hattie's research on the influences that have the "potential to considerably accelerate student achievement" all the way down to the influences that are "likely to have a negative impact on student achievement."

What I wonder is how frequently teachers use sources like this to choose the practices that they invest time and energy into.

Visible Learning - Home

@plugusin This is certainly worth looking at. A nice, comprehensive collection of things that may or may not impact education.

@daveski : You are right, Dave.

What I dig is that you can sort by in-school and out of school factors.

I also like that you can see how many studies went into generating the effect size --- which helps to put that number into a reliability context.

It's the best single home summarizing Hattie's research that I've ever seen.