Effect Size Explained
We hear about effect size all the time. I don't know about you, but I didn't completely understand the numbers. Eric Jensen's Poor Students, Rich Teachers (ch 2) explains effect size. Ah-ha!!
0.00 or less = negative effect
0.00 - 0.20 = Negligible or unclear effects
0.21 - 0.40 = small/moderate effects
0.41 - 0.60 = moderate to strong effects --> 0.50 is 1 years worth of growth
0.61 - 2.00 = extremely positive effects --> 1.00 is 1 is 2 years worth of growth;1.50 is 3 years growth
As you look at strategies that provide effect size take into account that students coming from poverty have academic gaps and usually need more than a years worth of growth. It can be accomplished if we focus our efforts by using what researchers have found to be the most beneficial tactics.
0.00 or less = negative effect
0.00 - 0.20 = Negligible or unclear effects
0.21 - 0.40 = small/moderate effects
0.41 - 0.60 = moderate to strong effects --> 0.50 is 1 years worth of growth
0.61 - 2.00 = extremely positive effects --> 1.00 is 1 is 2 years worth of growth;1.50 is 3 years growth
As you look at strategies that provide effect size take into account that students coming from poverty have academic gaps and usually need more than a years worth of growth. It can be accomplished if we focus our efforts by using what researchers have found to be the most beneficial tactics.
USE WHAT IS GOOD -- DITCH WAS IS NOT!
Don't simply keep adding to what you do.
Take a good look at your overflowing toolbox...
now let it go (singing...) and put in what works.
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