Hi Kelli,

I don't know how the broad scores are calculated, but I looked back at the WJ-III tests that my ds has had, and compared his broad scores to subtest scores, and just summing + averaging doesn't equal the broad score - so there's some type of weighting or something attached to the calculation.

You might try googling for an explanation.

I know it's frustrating to be so close but not *quite* there - but fwiw, my ds always had lower-than-predicted scores on his WJ-III achievement tests, but once he was just a little bit older and started taking other types of achievement tests his achievement scores lined up more in the range of his ability scores.

Best wishes,

polarbear