Ruff C F, Templer D I, Ayers J L, Barthlow V L
Percept Mot Skills. 1977 Apr;44(2):497-8. doi: 10.2466/pms.1977.44.2.497.
37 prisoners tended to exceed 29 psychiatric patients in having WAIS Digit Sapn scaled scores higher than the mean of their 5 other Verbal scaled scores. MMPI T scores were slightly to moderately inversely related to Digit Span performance.