Table 1.

Intercorrelations (Pearson) among tests

Measure	n	1	2	3
1. COG sum reactions		‐
2. COG errors (%)	87	0.13	‐
3. DT correct reactions	87	0.44a	−0.06	‐
4. ZVT processing time	83	−0.48a	0.08	−0.41a

^a P < 0.001.