Our third comparison, LTAA versus TxN (also a 2 × 2 design with Group and Gender as fixed effects), showed significant multivariate effects for group (Wilkes λ4,131 = 4.03, p = 0.004; TxN > LTAA) and gender (Wilkes λ4,111 = 6.28, p = 0.0001; men greater than women), but no significant group by gender interaction (Wilkes λ4,131 = 1.62, p = 0.174). TxN compared to LTAA had elevated scores on Disinhibition (group accounting for 8.6% of the variance, p < 0.001), Boredom Susceptibility (group accounting for 5.3% of the variance, p = 0.007), and Thrill and Adventure Seeking (group accounting for 4.5% of the variance, p < 0.05), but not Experience Seeking (group accounting for 1.3% of the variance, p = 0.18).
