I think I’m just going to let the picture tell the story:
If you want the words, go read the Trib story. I get that the TPM is supposed to measure growth, and that growth can and does occur with students who didn’t pass their assessment tests. But if that growth that the TPM says is occurring really is occurring, then that should show up in subsequent test results. Students that the TPM predicts will pass should eventually pass. I don’t know about you, but I don’t see much evidence of that in these data.
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