Larry Ferlazzo’s Websites of the Day…

…For Teaching ELL, ESL, & EFL

A Look Back: New Study Finds VAM Is Biased Against Teachers Of “At Risk” Students

| 0 comments

Over the next few days, I’ll be taking a break now-and-then from blogging to both take some R & R and to finish-up some more extended writing projects.

During this short break, I’ll be re-posting some of my favorite posts of 2017.

You might also be interested in:

 A Look Back: Best Posts From 2007 To 2009 

 A Look Back: 2010’s Best Posts From This Blog

A Look Back: 2011’s Best Posts From This Blog

A Look Back: 2012’s Best Posts From This Blog

A Look Back: 2013’s Best Posts From This Blog

A Look Back: 2014’s Best Posts From This Blog

A Look Back: 2015’s Best Posts From This Blog

A Look Back: 2016’s Best Posts From This Blog

 

There are lots of problems with VAM (Value Added Models, though I’ve also see the “M” stand for “Measurement”) being used for teacher evaluation. You can read about them at The Best Resources For Learning About The “Value-Added” Approach Towards Teacher Evaluation.

A new study has added to that evidence.

Dylan Wiliam shared Measurement Error and Bias in Value-Added Models by Michael T. Kane on Twitter. It’s not behind a paywall, and here’s an excerpt:

 

So, it sounds like VAM is biased towards teachers of middle-and-higher income students, and against those of us who teach students experiencing socio-economic challenges.

In districts using VAM, this finding will certainly make schools in low-income communities even more difficult to staff….

Author: Larry Ferlazzo

I'm a high school teacher in Sacramento, CA.

Leave a Reply

Required fields are marked *.


Skip to toolbar