Evans J G, Hamm H A
Percept Mot Skills. 1979 Oct;49(2):573-4. doi: 10.2466/pms.1979.49.2.573.
An argument is presented in favor of always administering the optional Digit Span subtest of the WISC-R. Use of Digit Span in conjunction with other subtests in a subtest grouping schemata--according to factor loadings--will substantially increase the usefulness of the WISC-R. Data show that often the Digit Span is not being given.
