Statistical Prediction of Change in Aphasia "Statistical Prediction of Change in Aphasia," JSHR, 23, 312–321, 1980, by Bruce E. Porch, et al., contains an error. On page 314, the example predictive equation should read, "Statistical Prediction of Change in Aphasia," JSHR, 23, 312–321, 1980, by Bruce E. Porch, et al., contains an error. On page 314, ... Erratum
Erratum  |   September 01, 1980
Statistical Prediction of Change in Aphasia
 
Author Notes
Article Information
Erratum
Erratum   |   September 01, 1980
Statistical Prediction of Change in Aphasia
Journal of Speech, Language, and Hearing Research, September 1980, Vol. 23, 704. doi:10.1044/jshr.2303.704
 
Journal of Speech, Language, and Hearing Research, September 1980, Vol. 23, 704. doi:10.1044/jshr.2303.704

"Statistical Prediction of Change in Aphasia," JSHR, 23, 312–321, 1980, by Bruce E. Porch, et al., contains an error. On page 314, the example predictive equation should read,

"Statistical Prediction of Change in Aphasia," JSHR, 23, 312–321, 1980, by Bruce E. Porch, et al., contains an error. On page 314, the example predictive equation should read,

Predicted overall Communicative Ability at 12 MPO = MW1 (Listening Score at 1 MPO) + MW2 (Reading Score at 1 MPO) + MW3 (Speaking Score at 1 MPO) + MW4 (Writing Score at 1 MPO) + Additive Weight.

rather than,

Predicted Overall Communicative Ability at 12 MPO = MW1 (Listening Score) at 1 MPO x MW2 (Reading Score at 1 MPO) x MW3 (Speaking Score at 1 MPO) x MW4 (Writing Score at 1 MPO) + Additive Weight.

We thank Joseph R. Duffy for calling this error to our attention.

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