As shown in Table 5, the CRT was either the best or second-best predictor
across all four decision-making domains and the only test related to them all. Thus,
for researchers interested in separating people into cognitive groups, the CRT is an
attractive test: it involves only three items and can be administered in a minute or
two, yet its predictive validity equals or exceeds other cognitive tests that involve up
to 215 items and take up to 31⁄2 hours to complete (or which involve self-reports that
cannot be readily verified).