Table 4.

Criterion Validity: Correlations with the Verbal Concept Attainment Test

Measure	r
Impairment Index	−0.50**
Digit Span Test	0.26*
WCST Percent Perseverative Errors	−0.32**
WCST Percent Conceptual Level Response	0.38**
Boston Naming Test	0.32**
DKEFS Letter Fluency	0.17
DKEFS Category Fluency	0.22*
DKEFS Switching	0.25*
CVLT-2 Total Recall	0.37**
PASAT Total Correct	0.27*
SDMT Oral	0.31*
Action Fluency	0.31**

^*p<.01

^**p<.001

Note. The Wisconsin Card Sorting Test: WCST, the Delis Kaplan Executive Function System: DKEFS, California Verbal Learning Test-2: CVLT 2, the Paced Auditory Serial Addition Test: PASAT, Symbol Digit Modalities: SDMT. Because of non-normality, VCAT scores were transformed using a square root transformation. Correlations are based on the transformed scores instead of raw values.